1. Got a boat or a yen to splash? Check out AquaPalooza at Angel Island this Saturday. It’s a free marine festival that attracts more than 10,000 boats and tens of thousands of families to Aquapalooza events all over the world. (And if you don’t have your own boat, take the ferry and a picnic and enjoy the beautiful island anyway.)

2. Get a behind-the-scenes tour of AT&T Park, from the dugouts to the luxury suite. Non-game days at 10:30 a.m. and 12:30 p.m. ($6-$10)

3. Kick up your heels at Baby Loves Disco at San Ramon’s Shboom Nightclub. Tots and parents can dance the afternoon away Saturday from 2 to 5 p.m. ($15 for walking humans, babies are free)

4. Teens and tweens will get a kick out of the roller derby action when the SF Bay Bombers play the Brooklyn Red Devils this Saturday at 8 p.m. at Alameda High School’s Gym. ($5-$10)

5. Or check out the Unique Derrique as he turns himself into a drum set and clowns around at Yerba Buena Gardens Saturday at 11 a.m. (Free)