I am leaving TOMORROW for Grand Cayman. This is about the 12th or 13th trip my husband and I have made since 2001 (we've lost count). On our first trip (we'd never dived before... well, once, in 1975 on our honeymoon in St. Thomas), we litterally picked Seasports out of the yellow pages just because they advertised small groups, and their prices were great. We would never go with anyone else in GC. Their friendliness, knowledge of the dive sites and, most importantly, commitment to safety are unparalleled. We have been to other islands, but keep coming back to GC. They have set the bar. They are superb, both for novices and experienced divers.
We recommend Aqua Bay Club as a place to stay. The beach is a little rocky, so the boat can't get in there, but it is less than a 2m drive to either community beach or the yacht club, 2 of their mooring points.
You just can't go wrong with Seasports. Have a great time!