On a sunny day, Golden Gate Park hosts a series of athletic activities we barely knew existed. (Archery? Fly-fishing? That sport where people put on huge rubber suits and run into each other?) Of all these options, your best bet for an awesome and interactive sporting experience may be volleyball, specifically near the Conservatory of Flowers. Located at the head of the park, these impromptu games feature a mix of old-school regulars (who know how to play) and various newcomers (who don't). Within 10 minutes of setting up a net, you'll be approached by foreign tourists of all stripes, asking to join in on the action. If you're looking to meet exotic new folks, it helps to be shitty at volleyball, as you're generally much more approachable (which is why our games always have a very international feel to them).