There are no sharks or dangerous marine animals in Lake Tahoe. The lake is freshwater and located far from any saltwater species. While Tahoe does have fish such as trout and kokanee salmon, these species live in deeper, colder parts of the lake and are rarely seen from the surface. Nearshore areas may have small, harmless crayfish, especially around rocks, but nothing that poses a threat to swimmers or boaters. Larger wildlife like bears or deer remain on land and do not inhabit the lake. The primary safety considerations for visitors are the lake’s cold water temperatures and afternoon winds, not wildlife. Overall, Tahoe is one of the safest major lakes for water recreation.