Bay Day is a regional holiday celebrating the heart of our home – San Francisco Bay. Our month-long Bay Day Challenge gives everyone an opportunity to explore and connect with the Bay. Explore 30 miles of the Bay Trail—which spans 350 miles in all 9 counties or complete 10 activities, such as kite flying, bird watching and picnicking.

The Bay Day Challenge includes:

• The option to form teams with friends, family, or coworkers

• Special events, incentives, and prizes

• A 30 day challenge guide full of activities, trails, and inspiration