Bay Area Discovery Museum

The Bay Area Discovery Museum is one of the few museums in the region built entirely for very young children. Its Discovery Zones are designed for kids from birth to 8, with tree houses, art studios, a space for the youngest visitors and an outdoor area at the edge of the bay. It sits at Fort Baker in Sausalito, an old Army post at the north end of the Golden Gate Bridge, so even the drive in has a view.

From Palo Alto it is a drive of about an hour or more across San Francisco and the bridge. This guide covers the museum's history and setting, the late 2026 hours, prices and closures from its official site, getting there, food, accessibility and nearby stops in Marin.

History and setting

The museum opened in 1987 inside the Golden Gate National Recreation Area. Its home, Fort Baker, was built at the start of the 1900s to house soldiers who ran the Army's harbor defenses at the mouth of the bay, including hidden gun batteries. During World War II its troops armed the underwater mines that guarded the entrance to the bay. The National Park Service describes more than 30 historic Army buildings around the fort's parade ground, now used by park partners including the museum and the Cavallo Point lodge.

In fall 2021 the museum finished a renovation of about $20 million that added five new exhibits. The most photographed is a set of connected tree houses shaped like the nuts of the trees they sit in. The museum's sections include Art Studios, Bay Hall, Discovery Hall, Lookout Cove, Tot Spot and a Fab Lab.

What kids do there

• Tot Spot. A space for the youngest visitors, with a nursing nook nearby.
• Lookout Cove. The museum's outdoor area. Dress for wind and fog.
• Bay Hall. One of the indoor halls, also with a nursing nook.
• Art Studios and Fab Lab. Spaces for art projects and building.
• Tree houses. The nut-shaped tree houses added in the 2021 renovation.

Children must stay with an adult at all times. Groups need one adult for every five children.

Hours, tickets and closures

The plan your visit page listed these hours in late 2026:

Members get early access from 9 to 10 a.m. on open days. In summer the museum is closed only on Tuesdays. Remaining 2026 closures listed on the page are Thanksgiving Day (November 26) and the winter holiday on December 24 and 25. The museum also takes annual closed weeks in September, which in 2026 ran from September 14 to 25.

Prices on the same page:

• Children 1 to 17 and adults 18 to 64: $25
• Seniors 65 and up: $23
• Babies under 1: free
• EBT, SNAP and WIC cardholders: $5 a ticket, up to four per card
• Military and veterans: $5 off for up to four guests
• ASTC members who live 90 miles or more away: free for two adults and four children

Tickets are sold through a dated calendar on the museum's site. The page does not describe a timed entry rule, but buying ahead locks in your day. Special events such as the autumn Goblin Jamboree are priced separately.

Getting there from Palo Alto

Driving is the only practical way from Palo Alto with small children. Take Interstate 280 north into San Francisco, cross the city to the Golden Gate Bridge and drive north across it. Take the Alexander Avenue exit just after Vista Point and follow signs down to Fort Baker. The museum notes that bridge traffic can back up the Alexander Avenue exit and that the Sausalito exit may be faster. Allow about an hour and a quarter outside rush hour and more on weekends, when bridge traffic is heavy.

The Golden Gate Bridge charges a toll only in the southbound direction, so you pay on the way home. From July 1, 2026 the FasTrak toll is $10.25 and other payment methods cost more. There are no booths. Our bridges and tolls guide explains how to pay by plate. Parking at the museum is free in the lots next to the building, with more waterfront parking past the main lot.

Timing matters on this trip. Leaving Palo Alto by about 7:45 a.m. on a Saturday gets you to the 9 a.m. opening with time to park. Heading home by early afternoon usually beats the worst of the southbound bridge traffic. On weekdays, avoid leaving San Francisco northbound during the evening commute.

Public transit from Palo Alto means Caltrain, Muni and a Golden Gate Transit or Marin bus, with several transfers. We do not recommend it with toddlers.

Who it suits

This museum is for babies, toddlers and preschoolers, plus early grade schoolers up to about 8. A family with a 2-year-old and a 6-year-old will find plenty for both. Children older than 8 or 9 tend to outgrow it fast. For them, the Exploratorium back across the bridge is a better pick. A visit usually runs two to three hours, which fits a morning trip and a nap on the drive home.

Accessibility and family facilities

Sound-blocking headphones and weighted vests are available at the front desk for children with sensory needs. Every bathroom has a changing table and diaper backpacks hang near the restroom entrances. Nursing nooks are in Bay Hall and Tot Spot. The page does not describe wheelchair access or stroller rules in detail, so call (415) 339-3900 with specific questions.

Food

Bean Sprouts Cafe on site is open from 9 a.m. to 3:30 p.m. The museum allows outside food and drinks, which makes a packed lunch easy. On a clear day, a picnic outside the museum comes with a view of the bridge. Downtown Sausalito, a few minutes north, has more restaurants for an early dinner.

Tips and pairings

• Skip Monday and Tuesday. Both are closed during the school year.
• Go early on Saturday. It opens at 9 a.m., an hour earlier than other days.
• Bring layers. Fog and wind at the bridge make it much colder than Palo Alto, even in summer.
• Pack spare clothes. Outdoor play on a damp morning can leave small kids muddy.
• Set up FasTrak or plate pay. The bridge has no cash booths.

Our Sausalito and Marin guide covers the waterfront town next door. Muir Woods is about half an hour farther, but it needs advance parking or shuttle reservations. For a children's museum closer to home on a short day, the Children's Discovery Museum in San Jose and CuriOdyssey in San Mateo are both under 40 minutes away. See our toddler guide for more. To turn it into a weekend, compare hotels in Sausalito and Marin.

Tours and activities

Hotels on a map

Frequently asked questions