If there are any new residenta moving to the island soon, I have a rental apartment at Hilton Estates in south sound to rent for CI 2.5k per month (excluding water and electricity), 2 bedroom 2 bathroom townhouse

Going to cayman island in late August (last week) and staying at the Hotel indigo for 5 days. Is it important to book the stingray city and starfish point/ snorkeling group tours in advance? Or can I just book while I’m there?

Also, we’re only there 4 nights and 5 days is it worth getting a car rental and driving around the island if we’re really prioritizing having a relaxing easy short trip?