DeepFlight Challenger point of each of the world's five oceans, the Mariana Trench of the Pacific Ocean (36,201 ft), the Puerto Rico Trench of the Atlantic Ocean (28,232 ft), the Diamantina Trench of the Indian Ocean (26,401 ft), South Sandwich Trench of the Southern Ocean (23,737 ft), and Molloy Deep of the Arctic Ocean (18,399 ft). The Cheyenne yacht will be used as the mothership for the dive efforts. It was planned that Branson would pilot the sub to the Puerto Rico Trench, while Chris Welsh would pilot it for the Mariana Trench dive. Virgin Oceanic had hoped to be the first
HMAS Diamantina (K377) the flood, while volunteers adjusted the ropes to prevent the ship bashing against the dry dock. The ship was undamaged. HMAS Diamantina (K377) HMAS "Diamantina" (K377/F377/A266/GOR266), named after the Diamantina River in Queensland, is a that served the Royal Australian Navy (RAN). Constructed in the mid-1940s, "Diamantina" was active from 1945 until 1946, was placed in reserve, then was recommissioned as a survey ship from 1959 until 1980. Following her second decommissioning, the frigate was preserved at the Queensland Maritime Museum as a museum ship. She was the last World War II-era frigate to leave RAN service, and of the