Warm blue water with a ton of marine life to me is a great hook to go visit an island. In early July 2022 we sailed around St. Martin and got in a pedestrian 8 dives in a week. Nevertheless, we still saw a good variety of reef live. Some of my favorites were the turtles. All were green sea turtles but there were quite a few of them. Most were eating on the reef. Only one was swimming apparently looking for a meal.
But we also saw a variety of fish. Some were the usual pretty grunts that would show up in relatively large schools.
But the colors on the reef were not limited to browns and yellows. Instead there were also reds and other colors.
And of course, often on the edge of visibility there were grey reef sharks patrolling around the divers.