Water Activities. Swimming. Besides the outdoor pools available to the public during summer at Curry Village and Yosemite Valley Lodge, swimming is generally permitted in all bodies of water in the park. There are some exceptions, however, where swimming is prohibited: There are some special regulations that apply within the park: Kayaking is a popular way to enjoy the calm waters of Tenaya Lake. Every person must have a personal flotation device immediately available for each occupant of the raft/boat (and children under age 13 must be wearing one). Water Activities - Yosemite National Park (U.S. National Park Service)
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