When it comes to rollerblading, the roughly two-mile bike path at Crown Memorial State Beach is the Venice Beach of Alameda, without the pretensions. Smooth and flat, it runs adjacent to an open and uncrowded stretch of sandy bayfront. While a main road runs parallel on one side for about a mile, the view on the other -- spanning from the Bay Bridge to SFO -- more than makes up for your proximity to traffic (which is actually fairly light on weekdays). The path is a generous seven feet wide, so getting past walkers and runners isn't a major struggle, even for the wobbly. The overall vibe is peaceful, and it's especially relaxing if you kick back on the sand to enjoy sunset after your roll in the park. The whole area is well maintained, with minimalist restroom facilities.