




Thorfinn
from $347
SS Thorfinn is a historic liveaboard offering year-round diving in Truk Lagoon, featuring comfortable accommodations, expert dive support, and access to legendary WWII wrecks.



Location
Your trips ground transportation from airport or hotel to the ship is provided and included in your package. Friendly van drivers greet and transport you to a nearby pier for transfer by waiting dive tender out to the Thorfinn.
Direct boarding options are now also available, which gives you more diving time onboard. The staff will greet you immediately after the airport for morning or afternoon arrivals, and then provides transfer to the ship at dive location, with full onboard services and facilities. Diving plans immediately begin the following day, until desired departure with free transfer back to airport or shore facility.
Dive Overview
Truk Lagoon is considered by some to be the best wreck diving destination in the world, with over 60 World War II wrecks. The wrecks have a good amount of marine life on them, but some are quite deep, with the bottoms in the 100 - 150+ ft. range.
[See: Truk Dive Travel Guide]
Accommodation Overview
The SS Thorfinn Liveaboard has 10 air-conditioned cabins and 1 exclusive luxury suite.
SS Thorfinn Cabin and Ensuite Bathroom
SS ThorfinnCabin Details
- Guest Rooms
- Ten air-conditioned staterooms accommodate 20 guests in double occupancy. All have in-room vanities, TVs and DVD players, indirect lighting and full-length closets. Eight rooms located on D and E decks have double or queen size beds plus adjacent single berths. Private showers and toilets are fitted in each of these rooms. Three additional rooms on C deck are bright and spacious with two shared shower rooms and two shared toilets.
- Thors Lair
- Thors Lair an exclusive luxury suite has been created from two former main deck cabins, featuring a huge king size bed, adjoining bed settee, 44 inch TV monitor/player, PC table/chair, carpeted walls, 4 view windows, walk-in closet, bar fridge, bedside lighting controls, and large shower/toilet room. It is available for a slight premium over regular fares.
Dining Lounge & Guest Lounge
Dining Lounge & Guest Lounge
Food & Drinks
The friendly dining room staff serve breakfast cooked to order with other meals chosen daily by our chef from a varied menu taking any personal dietary requests into consideration. The two onboard chefs create a variety of delicious meals and daily fresh baked goods, with attention paid to all dietary needs. The bar provides a range of beverages from coffee, tea, hot chocolate, and soft drinks, to beers, wines, and spirits at a reasonable cost.
Cabin details
Staterooms - Economy E Dive Plan per day Lower Deck
Boat features
Boat facilities
Deck plan
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Photo & Video Gallery
Thorfinn dates




5 Apr 2025 - 12 Apr 2025
(Truk Lagoon Trip#2515
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8 days7 nights
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from $347
12 Apr 2025 - 19 Apr 2025
(Truk Lagoon Trip# 2516
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8 days7 nights
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19 Apr 2025 - 26 Apr 2025
(Truk Lagoon Trip# 2517
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8 days7 nights
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26 Apr 2025 - 3 May 2025
(Truk Lagoon Trip# 2518
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8 days7 nights
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3 May 2025 - 10 May 2025
(Truk Lagoon Trip# 2519
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8 days7 nights
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10 May 2025 - 17 May 2025
(Truk Lagoon Trip#2520
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8 days7 nights
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17 May 2025 - 24 May 2025
(Truk Lagoon Trip# 2521
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8 days7 nights
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24 May 2025 - 31 May 2025
(Truk Lagoon Trip# 2522
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8 days7 nights
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31 May 2025 - 7 Jun 2025
(Truk Lagoon Trip# 2523
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8 days7 nights
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7 Jun 2025 - 14 Jun 2025
(Truk Lagoon Trip# 2524
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8 days7 nights
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14 Jun 2025 - 21 Jun 2025
(Truk Lagoon Trip# 2525
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8 days7 nights
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21 Jun 2025 - 28 Jun 2025
(Truk Lagoon Trip# 2526
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8 days7 nights
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28 Jun 2025 - 5 Jul 2025
(Truk Lagoon Trip# 2527
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8 days7 nights
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5 Jul 2025 - 12 Jul 2025
(Truk Lagoon Trip# 2528
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8 days7 nights
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12 Jul 2025 - 19 Jul 2025
(Truk Lagoon Trip# 2529
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8 days7 nights
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19 Jul 2025 - 26 Jul 2025
(Truk Lagoon Trip# 2530
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8 days7 nights
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26 Jul 2025 - 2 Aug 2025
(Truk Lagoon Trip#2531
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8 days7 nights
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2 Aug 2025 - 9 Aug 2025
(Truk Lagoon Trip# 2532
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8 days7 nights
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9 Aug 2025 - 16 Aug 2025
(Truk Lagoon Trip# 2533
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8 days7 nights
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16 Aug 2025 - 23 Aug 2025
(Truk Lagoon Trip# 2534
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8 days7 nights
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23 Aug 2025 - 30 Aug 2025
(Truk Lagoon Trip# 2535
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8 days7 nights
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30 Aug 2025 - 6 Sep 2025
(Truk Lagoon Trip# 2536
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8 days7 nights
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6 Sep 2025 - 13 Sep 2025
(Truk Lagoon Trip# 2537
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8 days7 nights
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13 Sep 2025 - 20 Sep 2025
(Truk Lagoon Trip# 2538
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8 days7 nights
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20 Sep 2025 - 27 Sep 2025
(Truk Lagoon Trip# 2539
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8 days7 nights
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27 Sep 2025 - 4 Oct 2025
(Truk Lagoon Trip# 2540
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8 days7 nights
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4 Oct 2025 - 11 Oct 2025
(Truk Lagoon Trip# 2541
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8 days7 nights
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11 Oct 2025 - 18 Oct 2025
(Truk Lagoon Trip# 2542
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8 days7 nights
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18 Oct 2025 - 25 Oct 2025
(Truk Lagoon Trip# 2543
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8 days7 nights
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25 Oct 2025 - 1 Nov 2025
(Truk Lagoon Trip# 2544
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8 days7 nights
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1 Nov 2025 - 8 Nov 2025
(Truk Lagoon Trip# 2545
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8 days7 nights
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8 Nov 2025 - 15 Nov 2025
(Truk Lagoon Trip# 2546
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8 days7 nights
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15 Nov 2025 - 22 Nov 2025
(Truk Lagoon Trip# 2547
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8 days7 nights
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22 Nov 2025 - 29 Nov 2025
(Truk Lagoon Trip# 2548
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8 days7 nights
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29 Nov 2025 - 6 Dec 2025
(Truk Lagoon Trip# 2549
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8 days7 nights
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6 Dec 2025 - 13 Dec 2025
(Truk Lagoon Trip# 2550
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8 days7 nights
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13 Dec 2025 - 20 Dec 2025
(Truk Lagoon Trip# 2551
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8 days7 nights
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20 Dec 2025 - 27 Dec 2025
(Truk Lagoon Trip# 2552
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8 days7 nights
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27 Dec 2025 - 3 Jan 2026
(Truk Lagoon Trip #2553
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8 days7 nights
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3 Jan 2026 - 10 Jan 2026
(Truk Lagoon Trip#2601
Expandable trip) ( Weno - Weno)
8 days7 nights
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10 Jan 2026 - 17 Jan 2026
(Truk Lagoon Trip# 2602
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8 days7 nights
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17 Jan 2026 - 24 Jan 2026
(Truk Lagoon Trip#2603
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8 days7 nights
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24 Jan 2026 - 31 Jan 2026
(Truk Lagoon Trip#2604
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8 days7 nights
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31 Jan 2026 - 7 Feb 2026
(Truk Lagoon Trip #2605
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8 days7 nights
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7 Feb 2026 - 14 Feb 2026
(Truk Lagoon Trip #2606) ( Weno - Weno)
8 days7 nights
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14 Feb 2026 - 21 Feb 2026
(Truk Lagoon Trip#2607) ( Weno - Weno)
8 days7 nights
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21 Feb 2026 - 28 Feb 2026
(Truk Lagoon Trip#2608
Expandable Trips) ( Weno - Weno)
8 days7 nights
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28 Feb 2026 - 7 Mar 2026
(Truk Lagoon Trip#2609
Expandable Trips) ( Weno - Weno)
8 days7 nights
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7 Mar 2026 - 14 Mar 2026
(Truk Lagoon Trip#2610
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8 days7 nights
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14 Mar 2026 - 21 Mar 2026
(Truk Lagoon Trip#2611
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8 days7 nights
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21 Mar 2026 - 28 Mar 2026
(Truk Lagoon Trip#2612
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8 days7 nights
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28 Mar 2026 - 4 Apr 2026
(Truk Lagoon Trip#2613
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8 days7 nights
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4 Apr 2026 - 11 Apr 2026
(Truk Lagoon Trip#2614
Expandable Trip) ( Weno - Weno)
8 days7 nights
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11 Apr 2026 - 18 Apr 2026
(Truk Lagoon Trip #2615
Expandable Trip) ( Weno - Weno)
8 days7 nights
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from $347
18 Apr 2026 - 25 Apr 2026
(Truk Lagoon Trip#2616
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8 days7 nights
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25 Apr 2026 - 2 May 2026
(Truk Lagoon Trip #2617
Expandable Trip) ( Weno - Weno)
8 days7 nights
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2 May 2026 - 9 May 2026
(Truk Lagoon Trip#2618
Expandable Trip) ( Weno - Weno)
8 days7 nights
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9 May 2026 - 16 May 2026
(Truk Lagoon Trip#2619
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8 days7 nights
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16 May 2026 - 23 May 2026
(Truk Lagoon Trip#2620
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8 days7 nights
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23 May 2026 - 30 May 2026
(Truk Lagoon Trip#2621
Expandable Trip) ( Weno - Weno)
8 days7 nights
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30 May 2026 - 6 Jun 2026
(Truk Lagoon Trip#2622
Expandable Trip) ( Weno - Weno)
8 days7 nights
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6 Jun 2026 - 13 Jun 2026
(Truk Lagoon Trip#2623
Expandable Trip) ( Weno - Weno)
8 days7 nights
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13 Jun 2026 - 20 Jun 2026
(Truk Lagoon Trip#2624
Expandable Trip) ( Weno - Weno)
8 days7 nights
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20 Jun 2026 - 27 Jun 2026
(Truk Lagoon Trip#2625
Expandable Trip) ( Weno - Weno)
8 days7 nights
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27 Jun 2026 - 4 Jul 2026
(Truk Lagoon Trip#2626
Expanadable Trip) ( Weno - Weno)
8 days7 nights
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from $347
4 Jul 2026 - 11 Jul 2026
(Truk Lagoon Trip#2627
Expandable Trip) ( Weno - Weno)
8 days7 nights
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from $347
11 Jul 2026 - 18 Jul 2026
(Truk Lagoon Trip#2628
Expandable Trip) ( Weno - Weno)
8 days7 nights
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from $347
18 Jul 2026 - 25 Jul 2026
(Truk Lagoon Trip#2629
Expandable Trip) ( Weno - Weno)
8 days7 nights
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from $347
25 Jul 2026 - 1 Aug 2026
(Truk Lagoon Trip#2630
Expandable Trip) ( Weno - Weno)
8 days7 nights
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from $347
1 Aug 2026 - 8 Aug 2026
(Truk Lagoon Trip#2631
Expandable Trip) ( Weno - Weno)
8 days7 nights
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from $347
8 Aug 2026 - 15 Aug 2026
(Truk Lagoon Trip#2632
Expandable Trip) ( Weno - Weno)
8 days7 nights
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from $347
15 Aug 2026 - 22 Aug 2026
(Truk Lagoon Trip#2633
Expandable Trip) ( Weno - Weno)
8 days7 nights
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from $347
22 Aug 2026 - 29 Aug 2026
(Truk Lagoon Trip#2634
Expandable Trip) ( Weno - Weno)
8 days7 nights
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29 Aug 2026 - 5 Sep 2026
(Truk Lagoon Trip#2635
Expandable Trip) ( Weno - Weno)
8 days7 nights
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from $347
5 Sep 2026 - 12 Sep 2026
(Truk Lagoon Trip#2636
Expandable Trip) ( Weno - Weno)
8 days7 nights
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from $347
12 Sep 2026 - 19 Sep 2026
(Truk Lagoon Trip#2637
Expandable Trip) ( Weno - Weno)
8 days7 nights
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from $347
19 Sep 2026 - 26 Sep 2026
(Truk Lagoon Trip#2638
Expandable Trip) ( Weno - Weno)
8 days7 nights
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26 Sep 2026 - 3 Oct 2026
(Truk Lagoon Trip#2639
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8 days7 nights
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3 Oct 2026 - 10 Oct 2026
(Truk Lagoon Trip#2640
Expandable Trip) ( Weno - Weno)
8 days7 nights
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10 Oct 2026 - 17 Oct 2026
(Truk Lagoon Trip#2641
Expandable Trip) ( Weno - Weno)
8 days7 nights
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17 Oct 2026 - 24 Oct 2026
(Truk Lagoon Trip #2642
Expandable Trip) ( Weno - Weno)
8 days7 nights
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24 Oct 2026 - 31 Oct 2026
(Truk Lagoon Trip#2643
Expandable Trip) ( Weno - Weno)
8 days7 nights
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31 Oct 2026 - 7 Nov 2026
(Truk Lagoon Trip#2644
Expandable Trip) ( Weno - Weno)
8 days7 nights
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7 Nov 2026 - 14 Nov 2026
(Truk Lagoon Trip #2645
Expandable Trip) ( Weno - Weno)
8 days7 nights
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14 Nov 2026 - 21 Nov 2026
(Truk Lagoon Trip#2646
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8 days7 nights
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21 Nov 2026 - 28 Nov 2026
(Truk Lagoon Trip#2647
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8 days7 nights
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28 Nov 2026 - 5 Dec 2026
(Truk Lagoon Trip#2648
Expandable Trip) ( Weno - Weno)
8 days7 nights
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5 Dec 2026 - 12 Dec 2026
(Truk Lagoon Trip#2649
Expandable Trip) ( Weno - Weno)
8 days7 nights
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12 Dec 2026 - 19 Dec 2026
(Truk Lagoon Trip#2650
Expandable Trip) ( Weno - Weno)
8 days7 nights
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19 Dec 2026 - 26 Dec 2026
(Truk Lagoon Trip#2651
Expandable Trip) ( Weno - Weno)
8 days7 nights
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26 Dec 2026 - 2 Jan 2027
(Truk Lagoon Trip#2652
Expandable Trip) ( Weno - Weno)
8 days7 nights
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from $347
Detailed information about the itinerary
SCUBA DIVING THE CHUUK LAGOON
The 50 by 30 mile Chuuk Lagoon is among the largest lagoons in the world. Due to its geographical placement, its enormous size, and attractive conditions it was deemed a great spot for the Empire of Japan to house its main naval base during World War II. In 1944 the United States visited the area and sunk dozens of warships and other vessels as well as destroying hundreds of aircraft.
The great battles and tragedy that was experienced in the lagoon in 1944 can now be witnessed by scuba divers in what is one of the greatest concentrations of shipwrecks on earth. There are almost 70 wrecks within the lagoon alone.
While the wrecks are usually the main draw there is also no shortage of marine life that can be found in the area. A wide variety of fish, as well as schools of sharks and a good variation of corals, can be found as well.
During your days aboard SS Thorfinn, 5 dives are offered each day at short distances from the stable comforts of the large mothership. Thorfinn does not attach itself to the fragile wrecks in the lagoon, avoiding damage from this practice.
Durable twin-engine launches provide uncrowded diving for small groups, at separate dive sites avoiding the heavy silt outs caused by large group repetitive diving. This system provides a broad range of sites, always with the chance of returning to a favorite. Diving commences within 2 hours of daylight arrivals giving an opportunity of diving 30 or more wrecks over a standard 7 dive day week.


More information about this trip

Included
- Double occupancy full facility rooms. Attractive single occupancy rates on request.
- Free wi-fi Internet from ship’s hotspot via local mobile service antennas.
- Open choice tour arrival dates and visits beyond 8 days as available at inquiry time.
- Valet dive gear stowage including cameras rinsed/delivered to C deck camera tables.
- All meals, snacks, teas, coffee, ice water. Soft drinks juices served at cost.
- Airport or hotel transfers to ship with local history, ship details, and dive safety briefings.
- Beer, wines, spirits served after daily diving at reasonable bar prices.

Excluded
- Morning arrivals with direct boarding to ship (when available) - $155 /person
- Boarding day air dives - $45/dive
- Afternoon/evening arrivals with direct boarding to ship - $ 125/ person

Practical information
- Time Zone: UTC+10
- Local Currency: USD (US dollar)
- Electricity: 220 and 110 volts
- Language Spoken: English

Boat Specifications
- Length, overall: 170ft / 58m
- Beam: 30ft / 10m
- Draft: 17ft / 5.5m
- Displacement: 1,100 tons
- Fuel Capacity: 340 tons
- Consumption/Speed: 7 tons/day @ 11 knots, 11 tons/day @ 16 knots
- Water Capacity: 18,000 gals
- Cruising Range: 9,000 nautical miles @ 11 knots
- Main Engine: Fredriksstad Mek 4 cyl. double compound steam 2,500 h.p. @ 140 rpm
- Boilers: 2 x Foster Wheeler D type 18,000 lbs./hr @ 250 psi, 600 deg F superheat)
- Generators:2 x Yanmar 6HAL-DTN diesels driving Marathon 250 kw 220 VAC 3 phs 60Hz generators,1 x Mitsubishi diesel driving 40 kw 220 VAC 3 phs 60 Hz generator
- Maximum Speed: 16 knots
- Maximum guests: 20
- Number of cabins: 10
Fellow traveler's reviews






utinaolga
1164 Reviews




Diving, history, education and much more. An underwater adventure with SS Thorfinn is not one’s typical diving holiday. It is an unbelievable journey, an immersive experience of a region rich with history and a true privilege to see it up close. Similarly, it was a joy to see the dive operator work. With Captain Lance and his team, It was always safety first, instilling in me, as a diver somewhat new to high caliber wreck diving, a profound feeling of confidence and comfort. I was in very good hands. Captain Lance and his team deliver what they promise. He knows the fine details of every wreck by heart and is happy to share his knowledge. I learned so much about every aspect of every dive location that I felt very satisfied throughout the trip. Despite our extensive underwater exploration, there is still so much to see. I am already looking to the day when I will return to these waters and go again with Captain Lance and the team at SS Thorfin. I highly recommend this operator!