Lake
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A lake is a naturally occurring, relatively large and fixed body of water on the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from the ocean, although they may be connected with the ocean by rivers, such as Lake Ontario. Most lakes are freshwater and account for almost all the world's surface freshwater, but some are salt lakes with salinities even higher than that of seawater. Lakes vary significantly in surface area and volume.
Lac Gentau in the Ossau Valley of the Pyrenees, France
Lake Michigan during a storm near the Ludington Lighthouse
The crater lake of Mount Rinjani, Indonesia
Lake Kaniere is a glacial lake in the West Coast region of New Zealand.
Depression (geology)
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In geology, a depression is a landform sunken or depressed below the surrounding area. Depressions form by various mechanisms.
A watering hole is a natural depression where water collects and animals come to drink.
Karst closed depression with permanent lake Stymfalia, Peloponnese, Greece. Seasonal abundant precipitation drained by 3 sinkholes