Tenaya Lake, Alpine lake in Yosemite National Park, US.

Tenaya Lake is an alpine lake in Yosemite positioned in a granite basin at 2,484 meters elevation between Yosemite Valley and Tuolumne Meadows. The water is fed and drained by a natural stream system that sustains the lake throughout the year.

During the last ice age, the Tenaya Glacier carved this lake while simultaneously shaping the granite landscape, including Half Dome. The geological work from that period continues to define the scenery visitors see today.

The name honors Chief Tenaya of the Yosemite Valley tribe, replacing the original Pie-we-ack meaning Lake of the Shining Rocks. Visitors experience this heritage when they see the sparkling granite formations surrounding the water.

The lake is accessible via State Route 120 from late May through November, allowing swimming, canoeing, and picnicking. Since the road closes during winter months, visitors should plan their trips during the open season.

Tenaya Creek alone serves as both the principal inlet and the outlet of the lake, carrying water from Cathedral Lakes and continuing through Tenaya Canyon into Yosemite Valley. The lake's original name, Py-we-ack, survives on Pywiack Dome, the granite dome east of the water.