Milwaukee Deep Milwaukee Deep Milwaukee Deep, also known as The Milwaukee Depth, () is the deepest part of the Atlantic Ocean and is part of the Puerto Rico Trench. It has a maximum depth of at least . It is just north of the coast of Puerto Rico at "Punto Palmas Altas" in Manatí. This ocean floor feature is named for the USS "Milwaukee" (CL-5), a U.S. Navy Omaha class cruiser, which discovered the Milwaukee Deep on February 14, 1939 with a reading of . On August 19, 1952, the U.S. Fish and Wildlife vessel "Theodore N. Gill" obtained a reading of
Titans of the Deep creatures seen and filmed at that depth for the first time. Titans of the Deep Titans of the Deep is a 1938 film inspired by the early 1930s deep sea dives made by William Beebe and Otis Barton. Beebe and Barton were the first to set ocean depth records in a device invented by Barton. The film was written by Les Adams. It was somewhat intended as a documentary but was often sold and advertised as an exploitation/horror picture. Prominent scientists Dr. William Beebe and Otis Barton, using the Bathysphere invented by Barton, descend several thousand feet to the ocean