Wanderlust World

# Travel >> Destinations >> South Pacific

Ocean's Deepest Point: Challenger Deep in the Mariana Trench

The deepest known point on Earth is Challenger Deep in the Mariana Trench, western Pacific Ocean.

Vital Statistics

Metric	Value
Depth	10,935 m (35,876 ft) — 2021 multibeam consensus
Location	11.329°N, 142.199°E — ~200 mi SW of Guam, 340 mi SW of Mariana Islands
Pressure	1,086 bar (15,750 psi) — ~1,100× surface
Temperature	1–4°C (34–39°F)
Environment	Perpetual darkness, near-freezing, extreme pressure, siliceous ooze sediment

Historic Descents

1875: HMS Challenger — Hemp rope sounding: 8,184 m (first measurement)
1951: HMS Challenger II — Echo sounding: 10,900 m (named "Challenger Deep")
1960: Trieste (Piccard & Walsh) — First manned: 10,916 m
2012: Deepsea Challenger (James Cameron) — Solo: 10,908 m
2019: DSV Limiting Factor (Victor Vescovo) — Multiple dives, 10,928 m, mapping
2020–21: Chinese Fendouzhe — 10,909 m; Russian Vityaz-D — autonomous

Life at the Bottom

Amphipods (Hirondellea gigas) — 2–3 cm, scavengers, piezolytes protect proteins
Xenophyophores — Giant single-celled foraminifera (10–20 cm)
Microbial mats — Chemosynthetic, pressure-adapted enzymes
No fish — Deepest fish: Pseudoliparis swirei (Mariana snailfish) at 8,178 m

Other Ultra-Deep Trenches

Trench	Max Depth	Location
Tonga Trench	10,823 m (Horizon Deep)	South Pacific
Philippine Trench	10,540 m (Emden Deep)	Philippine Sea
Kuril-Kamchatka	10,542 m	NW Pacific
Kermadec Trench	10,047 m	South Pacific

Challenger Deep remains the planetary nadir—a frontier more visited by robots than humans, where life persists at physics' edge.

Florida: The Peninsula Between Atlantic & Gulf of Mexico

US Never Attempted to Shorten Coast-to-Coast Ocean Trips

South Pacific

South Pacific

Wanderlust World

Central America

Other Destinations

Wanderlust World

Copyright Wanderlust World © https://www.ynyoo.com