This building is right on Crissy Field, just past the Marina, and is
part of the Presidio. It's a glass-front building (#603) and is well-
marked by signage.
Accessible by MUNI buses #28, alternate buses on the #29 line (ask
driver), and the #30, #43, and #45 all pass nearby.
Driving from SF, East Bay, points south:
Go north on Van Ness, left on Bay St., right on Laguna to Marina Blvd.,
go past Marina Green, bear slightly right into Presidio on Mason St.
Watch for signs.