Shell Key Preserve South Bayway Boat Ramp provides access to Shell Key Preserve, a 1,828-acre wildlife sanctuary featuring an undeveloped 195-acre barrier island popular with boaters, paddlers, and anglers.

The ramp is located at 2830 Pinellas Bayway South and offers access to shallow waters with seagrass beds; boaters should check tide charts before navigating these areas.

Primitive camping is available by permit in the southern public use area of Shell Key, though no facilities are provided on the island.