Garnd Cayman is a beautiful island with friendly people, close and easy dives with lots of structure and world-famous beaches.
The diving in Grand Cayman was beautiful and full of life and underwater structures. Swim-throughs and caves were prevalent and fun to dive. The dive sites that are further out from the shore are generally in better shape due to less diving and human contact. The USS Kittiwake was a great wreck dive but be forewarned it's swarming with tourists (divers and snorkelers) when the cruise ships are in port (everyday except Sunday). Sting Ray City is also super popular with adults and children alike. You get up close and personal with sting rays and snorkel with them. Seven Mile beach is a beautiful white-sand beach. Plan a day or two of relaxing on the sand and playing in the waters. You won't regret it!

The island completely shuts down on Sundays and most days after 6pm. Only a few restaurants are open and some bars. Anything in the main city of Georgetown is closed. Transportation via bike is easy and cheap. There are free buses on the island and they'll honk as they approach you. Wave your hand if you want to be picked up. Hitch-hiking was also very easy... we hitched 10x and everyone was friendly and talkative.
Food: I was not impressed with the food of the island. We ate at small restaurants, unheard of, non-chain establishments and tried the local dishes (though there really is no such thing as a local dish). Most things were bland in flavor or ordinary food I could get at home (hamburgers, chicken pasta, etc). I did however discover I'm not a fan of goat (curry, baked, fried or grilled).
Things I loved: fast boats, white sand, easy diving, warm water.
Things I didn't love: 100' maximum instituted by the Grand Cayman Diving Authority, one hour maximum instituted by most dive resorts.
Grand Cayman is a good island for families, people looking for easy and fun diving, couples, those who like to shop, and anyone looking for an English-speaking Caribbean island with SCUBA diving that is easy to get to.

CoCo View Resort is great! It's not the cheapest location on the island but it's worth the cost. The resort is on a section of island that is only accessible by boat. The resort is small with a very warm feel to it. There are over-water rooms, a building of rooms with balconies, and private beach houses.

A few weeks before we were to arrive, CoCo View contacted me to let me know they were full and would be moving me to a private beach house. These were a few minutes away via bicycle and offered their own stretch of beach, in addition to having all the amenities of a house (kitchen , living room, sun deck, etc). I loved staying at the private beach house.

All meals were provided and made by the friendliest women. I have a few dietary restrictions and they were more than happy to help create meals for me or pull some of the main dish aside before adding the other ingredients I couldn't eat. Local alcohol and beer were included as was most sodas, tea, etc. Once a week there is a BBQ on their private quay with a local dance group coming to give entertainment. The resort also offers a game room that people use for reading, lounging, and catching up with others.

The diving was great! The wreck Prince Albert is right in their "backyard" and is a beautiful dive. You can dive their shoreline anytime, any day. The lockers, dive tanks and cleaning stations are open 24-hours a day. There are morning and afternoon boat dives. The boats are large and comfortable, including a midboat entry so if the swell is bad you can enter from under the boat without risking a swinging ladder accident. The second dive of any boat trip is along the wall heading back to the resort. The longer dive you want, the further they drop you off. While this might seem like a boring repeat, vary your depth by 5' and you'll see things you didn't see before. Or locate something you really like and enjoy multiple opportunities to photograph it.

I would recommend this resort to people who are looking to get in a lot of dives, who enjoy wreck dives, and people who want an all-inclusive resort.

Roatan was a great place for diving, good local cuisine, fabulous dive sites and other activities on the island.

The dive sites are plentiful and rich in coral and fish life. Many dive sites are wall dives that you could easily consider "bottomless" or so deep that you'll never see or get to the bottom. The waters are warm and generally clear. I brought a 2.5mm shorty wetsuit that I started to use towards the end of my 7-day trip on some of the later dives of the day.

A few of my favorite dive sites were the Prince Albert wreck and Connie's Dream. The wreck has lots of life, is easy to locate (a shore dive from CoCo View Resort), and is penetrable. Connie's Dream is a drift dive with gorgeous structure and life. This dive site is also easily accessible from many resorts.

The Cara a Cara shark dive was also very cool. We took a boat to a mooring line about 5 minutes off the coast and suited up. Taking the line down, as there was a very strong current, we finally got to about 70' and tucked in behind a coral cluster. Large and plentiful sharks were there to swim around us and wait for the food bucket. After 10 minutes of showing off, the food bucket was finally opened and the feeding frenzy ensued. Very cool dive.

There was no depth limit except the recreational dive limit of your scuba diving rating. If you want to further your dive education and gain more ratings, you can do this at any of the dive shops on the island.

Other things to do on the island are zip lining, the famous Dolphin Dive at Anthony's Key Resort or head to West End for shopping or the beach. I did the Dolphin Dive and enjoyed it but won't likely do it again. Anthony's will pick you up from whichever resort you're staying at for your dive with them.

I would recommend this island for couples, families, and people looking for an island with things to do other than dive. Note that the cruise ships do come here for the day. You'll find town, especially West End, to be much busier. Avoid these areas on these days if you want lower prices and less people.