The sun sets over the Pacific just beyond the fog at this blustery beach. Most days are too chilly for bikini-clad clambakes but fine for hardy beachcombers and hardcore surfers braving riptides (casual swimmers, beware). Ocean Beach allows bonfires in 16 artist-designed firepits until 9:30pm; no alcohol permitted. Stick to paths in the fragile southern dunes, where skittish snowy plover shorebirds shelter in winter.