Did you know that Lake Tahoe has salmon? They are non-anadromous, but you can see them spawning in the fall at this visitors center.

Also there is a festival:

http://www.fs.usda.gov/wps/portal/fsinternet/!ut/p/c4/04_SB8K8xLLM9MSSzPy8xBz9CP0os3gjAwhwtDDw9_AI8zPyhQoY6BdkOyoCAGixyPg!/?ss=110519&navtype=BROWSEBYSUBJECT&cid=STELPRDB5196661&navid=150130000000000&pnavid=150000000000000&position=Feature*&ttype=detail&pname=Lake%20Tahoe%20Basin%20Mgt%20Unit-%20Nature%20&%20Science