Housed in the headquarters of the Long Now Foundation, this cafe-bar may sound mildly out of place in theory, but it’s perfectly delightful in practice. There’s a limited snack menu—crackers with fava-bean hummus, say, and assorted pickles—and you can bring food in from the restaurant Greens, a few doors down, or from the Off the Grid food trucks. $. 2 Marina Blvd.; 415/561-6582.