At the southern tip of Hutchinson Island in Stuart, Bathtub Reef Beach is one of the most unusual beaches on the Treasure Coast. A natural reef just offshore breaks the waves and creates a calm, shallow pool of clear water — like a giant bathtub. It’s about 35 minutes from Port St. Lucie and a fantastic spot for first-time snorkelers and young families.
What Makes It Special
The reef here isn’t coral — it’s built by tiny marine worms that cement grains of sand together into honeycomb-like structures. These worm reefs are rare and protected, and they shelter a surprising variety of small tropical fish, crabs and other sea life. Look but don’t touch or stand on the reef.
Best Time to Snorkel
- Go at or around low tide, when the water inside the reef is calmest and clearest
- Choose a day with light winds and a calm ocean
- Mornings are usually best, before crowds and afternoon breezes
What to Bring
- Mask and snorkel (a beginner set is fine)
- Water shoes
- Reef-friendly sunscreen and a rash guard
- Drinking water and snacks
Good to Know
Parking is limited and fills early on weekends. The beach has restrooms and showers, and lifeguards are on duty at times. Erosion and storms occasionally close the beach for repairs, so check Martin County’s current status before you set off.
Nearby
Make a day of it with a visit to the Florida Oceanographic Coastal Center or the historic House of Refuge, both a short drive away on Hutchinson Island, then lunch in downtown Stuart.
Find more Treasure Coast beaches and book your Port St. Lucie home base for your next family beach day.