Theater of the Sea in Key Islamorada Florida is an excellent educator of the ocean. Take a walking tour that provides you with information about reptiles, amphibians, birds, sharks, etc.. Yes, you see all of them on your tour. You can hold a baby shark as well. Dolphin and Sea Lion shows are during the tour, which are some of the best marine shows I have ever seen. A bottomless boat ride and your guide is a dolphin for a few minutes. A natural lagoon awaits where you can suntan or snorkel. Included in the price is all of the above, plus round trip from your city to Key Islamorada or Key Largo, 4 tickets, ticket handling, parking, some gifts, and an escort. You may choose to stay 1 night hotel or return home in the evening. It is about a 3 hour drive from Fort Myers to Key Largo, but another 2 hours to Key West.
Total price for up to 4 people is $410.
This can be combined with the Key West Ghost and Gravestones tour for a total of $760. This also includes a 1-night hotel.