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Exterior of Tides Converge, with a flag pole in front. Photo by Ric Miller.

Tides Converge

Enjoy art, food, and history at this collaborative workspace located in a historic former hospital.


Main Post Region


Military & Historic Site, Retail & Services

Top Amenities

Accessible Restrooms, Paid Parking, Bike Parking, Muni Bus-accessible, Shuttle-accessible

Tides Converge turned a cluster of former Army hospital buildings into a green haven for non-profits, with a public restaurant and art galleries.

Located in the historic former Letterman General Hospital, Tides Converge is a 12-building collaborative workspace that’s home to Tides and 70 social beneficial organizations.

Even the walls provide a public service. Rotating exhibits from the center’s two art galleries can be found in the light-filled halls, reflecting a focus on the environment and social justice. The campus is also home to Café Rx, a restaurant that’s open to the public on weekdays.

Map of the Presidio

By Public Transit

Muni Route: 43 Masonic

Stop: Letterman Drive/Tides Building

By Presidio GO Shuttle

Route: Downtown Route

Stop: Tides Converge

Tides Converge Parking

Paid parking is available in a lot behind the main campus building on Edie Road between Girard Road and General Kennedy Avenue.

Why We Love Tides Converge

This is where history, art, and social justice come together. On a weekday, stop in for breakfast or lunch at Café Rx, mingling with staff from the non-profits. Then walk through the hallways to see photos of the hospital in the Army days, as well as contemporary art.

Accessibility at Tides Converge

Parking for those with mobility limitations is in a small lot in front of the campus just off Lincoln Boulevard and in a lot behind the main building on Edie Road between Girard Road and General Kennedy Avenue. Both art galleries are on the first floor.

Insider Tip

On a sunny day, enjoy breakfast or lunch from Café Rx al fresco in the enclosed courtyard next to the restaurant.

Customers dining at the Café Rx restaurant in the Tides Converge campus in the Presidio.Photo by Charity Vargas.

Presidio History Meets a Modern Mission

Tides is dedicated to building shared prosperity and social justice. Their San Francisco office opened in the Presidio in 1996. 

Located in the Former Letterman General Hospital 

Tides Converge is located in part of the former Letterman General Hospital, established in 1898 to treat Army soldiers returning from action in the Philippines. It was named for Major Jonathan Letterman, a military surgeon who revolutionized battlefield medicine during the Civil War. For more than a century, the hospital served as a primary and specialized treatment center for soldiers from around the West, as well as battlefield casualties during World War I, World War II, the Korean War, and the Vietnam War. The hospital closed its doors in 1994.

People visiting an art gallery at Tides Converge.
Photo courtesy of Tides.

Free Art Galleries 

The China Brotsky Gallery, named for a key leader in the national shared spaces movement, and the SEED Photographic Gallery feature bright, windowed space with free art exhibits that rotate every two to three months. Visiting hours are weekdays from 8:30 a.m. to 5 p.m.

Breakfast or Lunch at Café Rx 

Located in the Tides Converge campus, Café Rx offers weekday breakfast, lunch, and coffee with casual counter service.

Conference Rooms and Art Rentals 

Tides Converge provides non-profits and social enterprises affordable conference room and workspace rental options. Learn more on the Tides Converge website. 

Park Itineraries

Need help planning your day at the Presidio? We’ve put together some itinerary ideas for things to see and do in the park. Whether you’re planning to spend a few hours or an entire day, there’s something for everyone at the Presidio.

We’re Here to Help

Have a question about the park? Want help planning your next visit? We’ve got you covered.

Representatives from the National Park Service, Parks Conservancy, and Presidio Trust standing in front of the Presidio Visitor Center