The Bay Area: Mission Peak
Credit: Cathy Clark / Getty Images

From the summit of Mission Peak, the terminus of the Hidden Valley Trail, hikers can see San Jose, Oakland, Fremont, and San Francisco as well as Mount Hamilton, the Santa Cruz Mountains, Mount Tamalpais, and Mount Diablo. The hike is just outside the San Jose city limits in Fremont – part of the Easy Bay – but it's only a short drive from most places in the Bay Area. The nearby Mission Peak's Horse Heaven Trail is slightly more rigorous and a lot less crowded if you're looking for a faster path to the top.