Crissy Field

Crissy Field is located in San Francisco, just inside the Golden Gate. It's seen major restoration work in the last couple of decades (mainly around 1999-2000, I believe) and has now become an amazing recreational destination. It offers great views of both the bay and the city (and of course, the Golden Gate Bridge) and on a Saturday afternoon in June it was crawling, rolling, jogging, and just plain crowded with visitors, both local and from far away.

AERIAL VIEW

The restoration work included not just the tidal lagoon and marsh, but also the beach and the dunes. For more on the history and restoration of Crissy Field, see this description at the Golden Gate National Recreation Area website.