Ladder Bay is an anchorage on the leeward side of the Caribbean island of Saba. The bay sits on the west side of the island, directly under a set of 800 steps hand carved into the rocks locally known as "The Ladder". Until the construction of Saba's first pier in the 1970s, Ladder Bay was a primary point of entry for supplies to the island. An abandoned customs house sits on the lip of a cliff overlooking the bay.

The Saba National Marine Park encompasses the waters and sea bed encircling the Caribbean island of Saba, Caribbean Netherlands, from the high water mark to 200 feet (61 m) deep. In total, the marine park covers approximately 5 square miles (13 km2). At the time of its creation in 1987, the government passed the Marine Environment Ordinance to protect the coral reefs and other marine life within the park. The Saba Conservation Foundation manages the Saba National Marine Park, as well as the island's hyperbaric facility, and natural sites on land.