Wapama Falls is the larger of two waterfalls located on Falls Creek on the northern wall of Hetch Hetchy Valley below Hetch Hetchy Dome, in Yosemite National Park. The other waterfall, Tueeulala Falls, is on a separate seasonal distributary of Falls Creek. Wapama Falls flows year-round and during peak flow has been known to inundate the trail brid…Wapama Falls is the larger of two waterfalls located on Falls Creek on the northern wall of Hetch Hetchy Valley below Hetch Hetchy Dome, in Yosemite National Park. The other waterfall, Tueeulala Falls, is on a separate seasonal distributary of Falls Creek. Wapama Falls flows year-round and during peak flow has been known to inundate the trail bridge crossing its base, making the falls impossible to pass. The falls consist of two primary drops angled roughly 60 degrees to each other, and a broad cascade at its base.