@Tim Myers, if you are interested in Cayman then it is a good place for divers of all levels, including novice divers, because there are so many different diving options and quality dive ops. The reefs are close to shore and there are lots of shallow dives and even the wall dives usually start around 60 feet, so it is usually easy to stay shallow if you wish. Most dive ops will have a divemaster in the water during boat dives - and usually you can follow him/her or go off on your own.
Also, we have frequently had good luck in finding RT airfares to GC at a reasonable price - but that may not be true if you will be traveling around Easter, anywhere in the Caribbean (or Florida or the Bahamas.)
When we are on Grand Cayman we are not usually interested in staying at a place with a meal plan because there are so many condos, hotels, grocery stores, restaurants, and eateries, and good food choices - but things can get expensive. So a small, all-inclusive dive resort like Cobalt Coast might be a good choice because you do get a lot for a decent price, see the 2 packages below that are offered over the April months - if they still have availability.
Reef Divers is the onsite dive shop at CC and they also provide dive computers for free while you are diving with them; so that is one less thing to worry about renting. I looked at some of other dive ops on GC and renting a dive computer was running about $12 per person per day at some places.
CC is "off the beaten path" and I would recommend renting a car for at least part of the time because it would give you a chance to explore the island, but you can get by without a car if you are mostly interested in eating, sleeping, relaxing and diving.
The unlimited shore diving on the house reef at CC is good but it can get winded out during the winter months, but by April that may no longer be an issue. We have never stayed at CC but we have visited the property and dived with them and thought that it was a very nice place with good boats, and very good dive shop and staff - and good diving!
Depending on your budget, there are many dive vacation options available in the Cayman Islands - and elsewhere in the Caribbean. If you could give us a ballpark budget - and some info about the things that you like to do on vacation - that would help in making recommendations.
You might also talk to your local dive shop to see if they have any trips or travel affiliations in April, and you can ask if they have any decent-quality, used equipment for sale.
Grand Cayman Dive Packages at Cobalt Coast Resort
COBALT COAST & REEF DIVERS: Classic Cayman. Includes 7 nights (can be adapted for 6 or 5 nights too), tax, transfers, all meals, 3 drinks/day (alcoholic or non-alcoholic), 6 days 2-tank morning dives + 5 days 1-tank afternoon dives (17 dives), shore diving from resort dock (weather permitting), use of dive computer, wifi, welcome rum punch, Manager's cocktail reception (usually Mon's), fees, gratuities and taxes. Dive gratuities not included: $1720 pp/do - $2245 pp/do (depends on room type).Travel Jan - Dec 31, 2019.
COBALT COAST & REEF DIVERS: Cayman Escape: Includes 7 nights (can be adapted for 6 or 5 nights too), tax, transfers, breakfast and dinner daily, 6 days 2-tank morning dives (12 dives), shore diving from resort dock (weather permitting), use of dive computer, wifi, welcome rum punch, Manager's cocktail reception (usually Mon's), fees, gratuities and taxes. Dive gratuities not included: $1420 pp/do - $1945 pp/do (depends on room type).Travel Jan - Dec 31, 2019.