Beaches are awesome, and the lower the tide the more beach there is to enjoy. Some beaches disappear almost completely at higher tides, like Clipper Cove beach on Yerba Buena Island or Mile Rock Beach at Land’s End, while others are only safely accessible on foot at lower tides like the beach between Avalon Canyon and Mussel Rock in Daly City or the northern end of Marshall’s beach leading up to the Golden Gate Bridge.