| Bear Lake State Park | |
| Map: | USA Idaho#USA |
| Relief: | 1 |
| Location: | Bear Lake County, Idaho, United States |
| Nearest City: | St. Charles, Idaho |
| Coordinates: | 42.03°N -111.26°W |
| Area Acre: | 966 |
| Elevation: | 5900feet |
| Designation: | Idaho state park |
| Established: | 1969 |
| Visitation Num: | 162,787 |
| Visitation Year: | 2014-2015 |
| Visitation Ref: | (expressed as Total Visitor Days) |
| Website: | Bear Lake State Park |
Bear Lake State Park (sometimes called North Beach State Park) is a public recreation area bordering the north and eastern shores of Bear Lake in the southeast corner of Bear Lake County, Idaho, near the Utah and Wyoming state lines. The state park sits across the lake from St. Charles and is 15miles south of Montpelier. Bear Lake National Wildlife Refuge lies adjacent to the park's north unit.
The state purchased land for the park in 1969 using funds supplied through the Recreation and Public Purposes Act. At the same time, the North Beach unit was leased from Utah Power and Light. Management of the north unit continues under lease from PacifiCorp.
This state park is home to bonneville cisco, cutthroat trout, moose, pelicans, lake trout, deer, cranes and cougar.
Bear Lake owes its turquoise blue color to the presence of suspended calcium carbonate (limestone). The park's two units each have a beach over 1miles in length with gradually sloping lake bottom and large swimming area. Camping is offered in the east unit. In winter, the park provides ice fishing access for the annual runs of Bonneville cisco.
According to the Köppen Climate Classification system, Bear Lake State Park has a warm-summer humid continental climate, abbreviated "Dfb" on climate maps. The hottest temperature recorded in Bear Lake State Park was 99F on July 27 - 28, 1931, while the coldest temperature recorded was -41F on February 1, 1985.