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Water science news, explainers, and statistics covering freshwater, hydrology, lakes, rivers, groundwater, ice, and Earth’s connected water systems.

Bathymetric map of the Cayman Trough

How Deep Is the Cayman Trench?

The Cayman Trench reaches approximately 25,216 feet, or 7,686 meters, below sea level. The Cayman Islands Department of Environment uses that figure for the deepest part of the Caribbean Sea. It is deep enough to place the trench floor more than 4.7 miles beneath the surface. Also called the Cayman Trough and historically the Bartlett…

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A road following the forested Lake Superior shoreline in autumn

Lake Superior Circle Tour: 1,300-Mile Route and Map

The Lake Superior Circle Tour is a self-guided road route of about 1,300 miles, or 2,092 kilometers, around the world’s largest freshwater lake by surface area. It passes through Ontario, Minnesota, Wisconsin and Michigan, crossing the Canada-United States border twice. The official line can be driven in either direction, with side trips adding hundreds of…

Lake Tahoe shoreline, docks and boats seen from above

10 Lakes Near Reno, Nevada

Reno sits between high Sierra lakes and the desert basins of northwestern Nevada. Within roughly two hours of downtown, visitors can reach Lake Tahoe’s clear alpine water, the saline expanse of Pyramid Lake and several reservoirs built along the Truckee River system. The best choice depends on whether the day is for swimming, paddling, fishing…

An angler holding a freshly caught trout beside a northern lake

Great Bear Lake Fishing: Species, Rules and Best Season

Great Bear Lake offers exceptional lake trout fishing in Canada’s Northwest Territories, including fish of extraordinary size. Its remoteness, cold water and special regulations also make it a trip that requires more planning than an ordinary drive-to lake. Most visiting anglers fish through a lodge or licensed outfitter during the brief ice-free season. Lake trout…