Things to do in Grassy Key

Activities, attractions and tours

A dolphin swimming near a wooden dock and a tree branch in the water.
A beach with clear turquoise water, surrounded by lush green trees and a distant shoreline with buildings.
A calm bay with clear turquoise water, surrounded by lush green vegetation and a sandy beach.
A building with a blue awning labeled "Dolphin Research Center" and a dolphin logo.
A dolphin sculpture and a sign for the Dolphin Research Center.

Things to do


  • find price illustration

    Explore activities

    Explore thousands of experiences from activities and attractions to day tours and transfer.
  • calendar shield illustration

    Book with ease

    Skip the line- book tickets online in minutes to top attractions with free cancellation on many activities.
  • trophy illustration

    Treat yourself

    Members save % or more when you book activities.

Most popular experiences in Grassy Key

Tours & day trips

See all 27 activities

Private & custom tours

See all 8 activities

Wildlife & nature

See all 5 activities

Holiday & seasonal tours

See all 3 activities

What to do in Grassy Key



 

Looking for fun things to do nearby? Check things to do near me to find and book the best things to do, fun activities, and top attractions wherever you happen to be.

 


 

Explore a world of travel with Expedia