Some years ago Grand Cayman started a timeshare tax. Think it's $10CI or $12.50USD per night. Think the departure tax at the airport is still $10CI as well. However, our stay in Aruba had both a nightly tax and an energy charge. It added up to $8USD per night but I understand it varies.
Provided you don't scare easily I wouldn't miss 'Stingray City" in Grand Cayman. The story goes fishermen used to stand on the sandbar (about waist deep) and clean their their fish. Now visitors can interact with the stingrays which are quite tame. (I do shuffle my feet through the sand to avoid stepping on them.) There's a deeper area divers enjoy as well.
Provided you don't scare easily I wouldn't miss 'Stingray City" in Grand Cayman. The story goes fishermen used to stand on the sandbar (about waist deep) and clean their their fish. Now visitors can interact with the stingrays which are quite tame. (I do shuffle my feet through the sand to avoid stepping on them.) There's a deeper area divers enjoy as well.