Sandwich Town Beach

Sandwich Town Beach is a shore dive on Cape Cod, Massachusetts, described as the most popular shore dive on the Cape, offering easy access directly from the beach. The bottom close to shore is a mixture of small rocks and sand, transitioning to larger rocks and distinctive clay bank reefs farther out. These clay reefs are an extension of the marsh behind the parking lot, which once stretched out to the ocean; the unique structure they provide supports a wide variety of burrowing animals. Depths range from 15 to 25 feet (roughly 4.5 to 6.8 metres).

The site holds lobsters, crabs, moon snails, mussels, starfish, flounder, tautog, and sculpin among the rocks and clay reefs. Horseshoe crabs can be encountered, and night dives bring the chance to see schools of squid. The site is noted as a fragile growth centre for bottom creatures and should be treated with care.

Entry is from the beach and is easiest at high tide, though low tide simply means a longer walk from the car to the waterline. The site is well suited to night diving. Current is light but can carry divers toward the Cape Cod Canal, and the area is heavily enforced, so staying aware of drift is important. The site is open year-round and rated for beginners.