There are many beautiful beaches on Hutchinson Island in Florida. Some of them like this one in Stuart have huge rocks and boulders.
When the tide is low you can walk up the beach in front of these rock formations. Don't forget to bring along your camera so you can photograph the beach, the surf, the huge puffy clouds that float over the island, and of course these interesting boulders.
After your explorations you can bodysurf, surf, fish, swim, or just relax in your beach chair.
This is a beautiful barrier island that's very laid-back. Enjoy your time here.
There is a Marriott Resort nearby if you want to stay for a while.