Lake Arenal
| Lake Arenal | |
|---|---|
A view from the southwest side looking across at the north depth 30–60 m (98–197 ft) | |
| Location | Alajuela and Guanacaste Provinces, Costa Rica |
| Coordinates | 10°30′19″N 84°52′20″W / 10.505167°N 84.872168°W |
| Max. length | 30 kilometres (19 mi) |
| Max. width | 5 kilometres (3.1 mi) |
| Surface area | 85 square kilometres (33 sq mi) |
| Max. depth | 100 metres (330 ft) |
| Islands | Isla Arenal |
| Settlements | Nuevo Arenal, Tronadora |
| Official name | Embalse Arenal |
| Designated | 7 March 2000 |
| Reference no. | 1022 |
Lake Arenal (Spanish: Lago Arenal) is a lake in the northern highlands of Costa Rica. It is the largest lake in Costa Rica at 85 square kilometres (33 sq mi). Its depth varies between 30 and 60 meters (98 and 197 feet) seasonally.