Lafayette locals love their namesake reservoir, and for good reason: it's a nucleus of relaxing nature activities. Stretch your legs on the flat 2.7-mile Lakeside Trail around the reservoir, passing a redwood grove and native wildflowers, or get to the heart of the matter by rowing the reservoir's pristine waters (row and paddleboats rent for $15 per hour). Paddle from one shore to the next—it takes about 10 minutes at a relaxed pace—and watch ospreys dive-bomb the water for fish. There's even an elusive bald eagle that hangs out in the area. Try your luck at catching a black bass or rainbow trout. The visitor center sells a one-day fishing license ($13) and a fishing rod and reel ($20), plus bait ($4). You're on your own for the catch!
The Lafayette Reservoir is just off Hwy 24 and is located in the Lafayette Recreation Area. Take the Acalanes exit and follow the signs. The area draws bicyclists (only on Tuesday and Thursday from noon until closing, and Sunday from opening until 11 a.m.), paddleboaters, kaykers, fishers, and picnickers. The Lakeside Trail is wheelchair accessible. Dogs on a leash are permitted on the Lakeside Trail.