They have beaches
The sort of rocky, rough kind at camp-ok for sitting by and people watching
The soft white sandy kind at Bahia Honda SP-pretty good for swimming and wading and walking with a great view of the open ocean
Shallow sea grass beyond the beach to try a little off-shore snorkeling.
They have critters
Key Deer (they are adorable little guys), alligators, Iguana (seems quite a few have been released and are thriving here), and all the familiar Florida birds.
No flamingos though!