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Day Trips · California, San Francisco

Half Moon Bay

  • DistanceAbout 30 miles (48 km) south of San Francisco
  • Travel timeAbout 45-60 minutes by car; 2 hours by public transit
  • TransportDrive via Highway 1 and Highway 92; SamTrans bus routes connect via Colma BART or Hillsdale Caltrain (about 2 hours).
  • Difficultyeasy
  • Rating★ 4.6
  • Best seasonSeptember-October for Pumpkin Festival season; December-April whale watching

Half Moon Bay is a coastal town in San Mateo County, about 30 miles (48 km) south of San Francisco on California's Pacific shore. Driving via Highway 1 and Highway 92 takes roughly 45 to 60 minutes. Public transit is possible but slow: SamTrans buses connect from Colma BART or Hillsdale Caltrain and take about two hours, with limited frequency and fares of around 2.25 to 4 dollars each way. Most visitors drive, and parking in town is largely free.

Half Moon Bay is a coastal town in San Mateo County, about 30 miles (48 km) south of San Francisco on California's Pacific shore. Driving via Highway 1 and Highway 92 takes roughly 45 to 60 minutes. Public transit is possible but slow: SamTrans buses connect from Colma BART or Hillsdale Caltrain and take about two hours, with limited frequency and fares of around 2.25 to 4 dollars each way. Most visitors drive, and parking in town is largely free.

The historic Main Street, near Kelly Avenue, has independent shops, bakeries, galleries and restaurants in preserved early-1900s buildings. The surrounding coast offers Half Moon Bay State Beach and its Coastside Trail, a flat, paved path along the bluffs suited to walking and cycling. Just north, Pillar Point Harbor in Princeton-by-the-Sea has fishing boats, seafood restaurants and the Mavericks surf break, and Pillar Point Bluff gives views over the harbor. Farm stands and pumpkin patches around town are the draw in autumn, and the annual Pumpkin Festival in October is a signature event. From December to April, whale-watching boats leave the harbor to see migrating gray whales.

A relaxed day arc starts with a morning coastal walk or bike ride on the Coastside Trail, followed by lunch at a harbor seafood restaurant. The afternoon suits browsing Main Street, visiting a farm stand or a short drive to nearby beaches and Fitzgerald Marine Reserve at Moss Beach, known for tide pools at low tide. Return before dusk, as Highway 92 can be foggy and congested on weekends.

September and October bring pumpkin season and often clearer weather, while winter is for whales. Summer mornings can be cool and foggy, so layers are helpful.

Practical information for Half Moon Bay · Last updated September 2026
Distance About 30 miles (48 km) south of San Francisco
Travel time About 45-60 minutes by car; 2 hours by public transit
Getting there Drive via Highway 1 and Highway 92; SamTrans bus routes connect via Colma BART or Hillsdale Caltrain (about 2 hours).
Difficulty easy
Address Main St and Kelly Ave, Half Moon Bay, CA 94019

How to get there

  • Mode
    Car
    Cost
    Parking mostly free; rental about $60-120 per day
    Frequency
    Any time
    Operator
    Car rental companies
    Departure point
    Anywhere in San Francisco
  • Mode
    SamTrans bus
    Cost
    About $2.25-4 each way
    Frequency
    Limited; confirm at samtrans.com
    Operator
    SamTrans
    Departure point
    Colma BART station

Location

Main St and Kelly Ave, Half Moon Bay, CA 94019

37.4636, -122.4286 View on map

Highlights

  • Walk or cycle the paved Coastside Trail along the bluffs
  • Browse historic Main Street shops, bakeries and galleries
  • Eat fresh seafood at Pillar Point Harbor
  • Visit pumpkin patches and farm stands during the autumn festival season
  • Join a whale-watching trip from December to April

Tips for visiting

  • Drive if possible; bus connections from Colma BART take about two hours and run infrequently.
  • Bring layers, as fog and wind are common on the coast even in summer.
  • Avoid Highway 92 on busy fall weekends, when pumpkin season traffic builds up.
  • Check tide tables before visiting tide pools at Fitzgerald Marine Reserve.
  • Book whale-watching trips ahead for weekends between December and April.

When to visit

September and October for pumpkin season, or December to April for whales; mornings are quieter than afternoons.

Accessibility

Main Street and the Coastside Trail are flat and paved, suitable for many wheelchair users. Some beach access points involve sand or stairs.

Frequently asked questions

How long does it take to drive to Half Moon Bay?

The drive from San Francisco takes about 45 to 60 minutes via Highway 1 and Highway 92. Weekend traffic can lengthen it.

Is there public transit to Half Moon Bay?

SamTrans buses link Colma BART or Hillsdale Caltrain with the town, but the journey takes about two hours and service is limited.

When is whale-watching season in Half Moon Bay?

Gray whales migrate past the coast from about December to April, and boat trips depart from Pillar Point Harbor.

Ready to book

Half Moon Bay

Visit visithalfmoonbay.org