museum of natural history Philharmonia Baroque Orchestra Acclaimed by the New York Times as the country s leading early music

Crissy Field is a former airfield that in recent years has become known as one of the see-and-be-seen proving grounds of California s windsurfing culture. Between March and October, hundreds come to try their hand. The beach here provides easy water access and plenty of room to rig up, but is not recommended for the inexperienced. This is also a popular place for joggers en route from the Marina District to Fort Point and back, with great picnic spots and a sweet cafe along the path to Fort Funston. At the west end of Crissy Field is a pier that can be used for fishing and crabbing.

Philharmonia museum of natural history Baroque Orchestra Acclaimed by the New York Times as the country s leading early music orchestra, museum of natural history Philharmonia Baroque performs in San Francisco and around the Bay Area. The season runs from September to April. At Herbst Theater, 401 Van Ness Ave. & 415/392-4400 (box office) or 415/252-1288 (administrative offices). www.philharmonia.org. Tickets $28 $62.

Equinox The sales hook of the Hyatt s rooftop Equinox is a revolving floor that gives each table a 360-degree panoramic view of the city every 45 minutes. In addition to cocktails, museum of natural history dinner is served daily. In the Hyatt Regency Hotel, 5 Embarcadero Center. & 415/788-1234.