Cape Romano is a remote barrier island tip off Southwest Florida, known for its offshore dome house ruins, pristine shelling, and wild, undeveloped shoreline.
Cape Romano sits at the southern tip of a barrier island chain near Marco Island in Collier County, Florida. For most of its history it was an undisturbed stretch of mangrove coast, shaped by the slow work of tides and storms along the Ten Thousand Islands.
The site gained unusual fame after a set of concrete dome houses was built offshore in the early 1980s as a self-sufficient vacation retreat. Erosion and storm surge have since swallowed much of the surrounding land, leaving the domes standing in the Gulf itself, their rounded forms reflected in still water at sunrise.
Visitors arrive by kayak, skiff, or guided boat tour from Marco Island or Goodland. The shelling along the exposed sandbars is considered among the finest on Florida's southwest coast. Dolphins are frequently spotted in the channels nearby, and osprey and roseate spoonbills are common sights overhead.
Cape Romano rewards those willing to make the trip with a landscape that feels genuinely remote, combining natural beauty with one of Florida's most photogenic and quietly haunting landmarks.
Arrive by kayak or boat, as Cape Romano is only accessible by water from the Goodland or Marco Island area.
Visit during low tide to explore the sandbars and get closest to the dome structures without entering the water.
Bring a bag for shelling, as the beaches around Cape Romano consistently yield whelks, olives, and junonia shells.
Go in the morning hours to avoid afternoon thunderstorms, which are common along the Southwest Florida coast in summer.
Wear water shoes since the shoreline is shallow and the bottom can be uneven with shells and submerged debris near the domes.
Customize a 6-hour private cruise of Marco Island and the Ten Thousand Islands
Cruise from Goodland to Marco Island with a Florida-certified naturalist guide
Private dolphin watching with time to explore and shell on a secluded island
Private 4-hour watersports tour for up to 6 with tubing, shelling, and wake or ski instruction
Ride through the Ten Thousand Islands for sunset views and wildlife spotting