The island is surrounded by an underwater national park that enforces strict rules to protect the reefs.

Visitors must buy a $10 permit, sold at dive shops, to use the underwater park.

Offshore, there are coral reefs in an underwater park.

Like underwater parks, these marine protected areas help conserve ocean wildlife and marine ecosystems.

Its debris field and wreck site is now the only underwater park on Long Island.

Within the underwater park are two artificial reefs, created to attract and enhance marine life.

After 121 years of briny sleep, the 310-foot-long steamer is still in fair shape and has been designated an underwater national park.

It was the first underwater park in the United States.

There is talk of one day transforming the waters into an underwater park.

In the 1970s remains of the ship were discovered and is now Long Island's only underwater park.