The world’s first successful manned expedition to the deepest point in each of the five oceans,
and the ultimate validatation of a unique deep-sea, manned research submersible.
THE FIVE DEEPS
The Five Deeps Expedition was the first to reach the deepest point in each of the Earth’s five oceans: the Puerto Rico Trench in the Atlantic, South Sandwich Trench in the Southern Ocean, Java Trench in the Indian Ocean, Challenger Deep in the Pacific and Molloy Deep in the Arctic.
- The expedition covered 47,000 nautical miles / 87,000 km in 10 months
- The submersible Limiting Factor completed 39 dives
- Around 50 scientific lander deployments were undertaken alongside the submersible dives
- No human had previously ever been to the bottom of the Java, Puerto Rico* or South Sandwich trenches
- No one had ever been to the bottom of Molloy Deep
- No manned submersible had ever been to Challenger Deep more than once
- No person had ever been to the summit of Mount Everest and also been to the bottom of the ocean at Challenger Deep, which occurred on this expedition.
* The French Bathyscape L'Archimede achieved 8,300m in the Puerto Rico Trench on May 6th 1964.
The Five Deeps Expedition’s primary objective was to dive to the deepest point in each of the five oceans.
Along the route, we took additional opportunities to dive areas of scientific interest or historical importance.
1 We originally reported this figure as 10,928 meters. As is common practice, following an extensive review of bathymetric data, and multiple sensor recordings taken by Limiting Factor and the three landers, we have revised this figure to 10,925 meters +/- 4m.