Skylight Cave is a lava tube within Deschutes County, Oregon, in the United States.
The cave is within Deschutes National Forest and is located east of Belknap Crater about nine miles northwest of the city of Sisters.
Skylight Cave is closed to visitation from September 15 to April 30 because of hibernating Townsend's big-eared bats.
[2][3] The cave is entered via a steel ladder through a collapsed roof section.
[3] Skylight Cave is closed to visitation from September 15 to April 30 because of hibernating Townsend's big-eared bats.