Cobalt Coast now offers an AI option since being purchased by new owners. Not a bad idea since they're 20 minutes drive from anything.
All Inclusive Packages
If you're planning to go soon, there's a higher likelihood that shorediving - even some North Wall boat diving gets blown out in the winter. They do move the boats/shuttle you for boat diving. When DiveTech had the dive operation that was done fairly frequently - around the dock it's pretty shallow for their bigger boats. IDK how Reef Divers is handling that now. I'm reliably certain Reef Divers is only offering two boat dives per day plus shore diving though.
Sunset House is a semi-AI. They include breakfast with their dive packages - have a bar/grill on-site as a 2nd paid lunch option and are walking distance to Georgetown for dinner options besides their restaurant.
Dive Packages - Sunset House - George Town - Cayman Islands Also typically 2 boat dives per day but you can do about 3 different shore dives there. Plus they offer their specialty dives - the Kittiwake, Stingray City etc. most afternoons. Most of the 2-tank boat operators in town do also - Kittiwake has appts., SRC generally has 2-3 other boats coming/going. Once you do the dive and surface the rays move on to the next approaching boat.
We like Sunset House enough that we had lunch then afternoon dove there. The Mermaid statue is a photo option, there's a small landing craft wreck straight out - if some of your divers are new they'll like the salt water pool entry and My Bar has good food. Cathy Church has a store/photo gallery there also - she's in the WDHOF and will autograph prints purchased if asked. Regular pool there also but no beach - the whole resort is on ironshore. So is Cobalt Coast - they spread sand on top of the ironshore but you'll need thick boots to get to the water.
The Reef Resort on the East End is a full AI resort
All-Inclusive Vacation Packages : Wyndham Reef Resort, Grand Cayman It would almost have to be since there's not much else there. And that's a 45minute drive back to Georgetown for most other things - there's about 7? resturants, one food store and 3 dive operators in the East End.
Compass Point Condos/Ocean Frontiers share a facility but Eagle Rays on-site is a pool bar with a slightly expanded menu. Even their website suggests other off-property dinner options. I only mention it since you can get a stay/dive/breakfast package there.
Winter Rates My buddy dove with OF and thought highly of them. I believe they do 3 maybe 4 daily dives.
Farther NE Morrritt's/Tortuga Divers is similar. I don't know any details except it's also a timeshare condo resort.
If you're all pretty good friends you can save a lot on Cayman by sharing condos on Seven Mile Beach also. Some have on-site food or it's right behind the resort along West Bay Road - either the hotel resort restaurants or there's also other restaurants - either beachfront - or on the Sound. At night after the cruisers leave Georgetown is pretty pleasant also with good restaurants - Guy Harvey's Grille is one. There's also a Margaritaville across from the cruise port. Either walkable from Sunset House also.
No shore diving off 7MB but the dive operators pick up daily with shuttle vans and transport you to nearby boats. It works pretty well - ours even dropped us for lunch first daily since we were also afternoon diving with them and others weren't. Some operators also offer 2 tank PM dives.
It's not AI but one of the more affordable options is Comfort Suites. Some rooms have kitchens, there's a restaurant on-site and Ambassador Divers is based there. Not beachfront but 50 yards down a path to 7MB. Sunshine Suites is equally reasonable since they're across the street from the beach. I believe there's a dive op there also. Both are going to shuttle/have you meet at the boat since neither is waterfront.