Lake Antoine was formed approximately 14,000 years ago, following the collapse of an extinct volcanic dome. The resulting crater gradually filled with water, creating what is now considered the island’s finest example of a true tuffaceous ring—a circular crater encircled by consolidated volcanic ash. It is located 6 miles north of the Eastern town of Grenville and the journey to find this lake is well worth it as you get to admire its beauty, surrounding unspoilt nature and perfect shape from a hillside vantage point.

 The lake is believed to be hydrologically connected to both Grand Etang Lake and St. George’s Harbour. Notably, in 1902 and again in 1929, all three water bodies reportedly exhibited slight responses to major volcanic events in neighboring St. Vincent and Martinique, suggesting possible subterranean linkages.

 Over time, the depth of Lake Antoine has significantly decreased due to siltation caused by activities along its slopes. While its depth was recorded at 100 feet (30 meters) in 1939, more recent measurements indicate a reduced depth of between 16 and 23 feet (5 and 7 meters).The lake currently covers an area of 42 acres (17 hectares), making it larger than Grand Etang.

“Much of the original vegetation around the lake has been cleared for agriculture—initially for sugar cane, and more recently for crops such as coconut, bananas and soursop. Despite these changes, Lake Antoine remains one of Grenada’s five major water bodies and continues to support a rich wetland ecosystem. Its biodiversity is especially notable among bird species, including herons, ruddy ducks, fulvous whistling ducks, various waterfowl, snail kites, large billed seed-finches, gray kingbirds, limpkins and coots. The lake also supports distinctive wetland flora, such as the knotted spikerush (Eleocharis interstincta) and the mocou mocou (Montrichardia arborescens).”