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Castro Valley: Zoo Loop(s) CANCELLED – RAIN

The Big/Little Zoo loop are two routes that start and end in the same place. If you are a slower (more relaxed) rider you can ride the Little Zoo Loop while faster riders or those needing more climbing and distance…

BobJanuary 14, 2026April 25, 2026 East Bay, Length: 20 - 30 miles, Length: 30 - 45 miles, Rides, Terrain: 2000' - 3000', Terrain: 3000' - +
Castro Valley: Zoo Loop(s) CANCELLED – RAINRead more

Los Altos: Los Altos Loop

27 miles, 1975 ft climbingRoute, Cue sheets, Garmin Download, Additional info here https://ridewithgps.com/routes/37131072 Start at: Lucky Grocery Store parking lot, 2575 Grant Rd, Los Altos The Cycling4Fun website list rides available in the bay area. This list is not frequently…

BobJanuary 12, 2026January 29, 2026 Length: 20 - 30 miles, Penninsula and South Bay, Rides, Terrain: 1000' - 2000'
Los Altos: Los Altos LoopRead more

Niles: Calaveras Road Loop

Description: Intermediate, hilly. Moderate traffic on Niles Canyon Rd. Light traffic on scenic Calaveras Road. This route — 38.7 miles with 2120 feet climbing. Ride details including map, cue sheet, and Garmin uploads are here: https://ridewithgps.com/routes/34255593 Directions to Ride Start: Niles…

BobJanuary 10, 2026January 29, 2026 BART Friendly, East Bay, Length: 30 - 45 miles, Rides, Terrain: 2000' - 3000'
Niles: Calaveras Road LoopRead more

Orinda: Crockett/3 Bears Loop(s)

A Ride (Long) – ride to Crockett then a refreshing 3 bears kicker at the end. Enjoy, 46 mi with 3860 climbing.Additional information including map, cue sheets, and Garmin download is available here: https://ridewithgps.com/routes/43996342 B Ride (Short) – Three Bears…

BobJanuary 8, 2026January 30, 2026 BART Friendly, East Bay, Length: 45 - 60 miles, Rides, Terrain: 3000' - +
Orinda: Crockett/3 Bears Loop(s)Read more

Marin: Paradise Drive

This ride memorializes Jerry Kruse, the founder of Cycling4Fun and cycling guru that helped many find their way into the sport of cycling. The pretty and enjoyable Paradise Loop was Jerry’s favorite ride. Here is a traditional version of that…

BobJanuary 8, 2026January 29, 2026 Events, Length: 20 - 30 miles, Length: 30 - 45 miles, SF and North Bay, Terrain: 1000' - 2000'
Marin: Paradise DriveRead more

Orinda: 3 Bears Loop(s) CANCELLED

A Ride (Long) – ride to Crockett then a refreshing 3 bears kicker at the end. Enjoy, 46 mi with 3860 climbing.Additional information including map, cue sheets, and Garmin download is available here: https://ridewithgps.com/routes/43996342 B Ride (Short) – Three Bears…

BobNovember 2, 2025June 22, 2026 Events
Orinda: 3 Bears Loop(s) CANCELLEDRead more
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Announcement


  • The regular Cycling4Fun riding season will be starting at the end of January 2026. Many of the early rides are somewhat easy so beginning riders can gain conditioning before starting the more challenging rides. The schedule on this website is subject to change. The most recent riding schedule can be found on the Cycling4Fun Meetup here: https://www.meetup.com/cycling4fun/


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Don’t cry because it’s over, smile because it happened.

— Dr. Seuss

Upcoming Rides / Events

  1. No Cycling4Fun event this week

    August 15 @ 8:00 am - 5:00 pm
  2. Niles: Palomares/Sunol/Calaveras

    August 22 @ 8:15 am - 3:00 pm
  3. No C4F ride today — Labor Day

    September 5 @ 8:00 am - 5:00 pm
  4. San Rafael: Pt Reyes loop and/or Marshall Wall and/or Sam Taylor Park

    September 12 @ 8:15 am - 2:30 pm
  5. Moss Landing: Elkhorn Slough/Larkin Valley Loop

    September 19 @ 8:15 am - 2:30 pm

View All Events

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  • BART Friendly
  • East Bay
  • Penninsula and South Bay
  • SF and North Bay
  • Length: up to 20 miles
  • Length: 20 – 30 miles
  • Length: 30 – 45 miles
  • Length: 45 – 60 miles
  • Length: 60+ miles
  • Terrain: 0 – 500′
  • Terrain: 500′ – 1000′
  • Terrain: 1000′ – 2000′
  • Terrain: 2000′ – 3000′
  • Terrain: 3000′ – +

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About C4F

Cycling 4 Fun website was created to help organize plan and document rides for a fun-loving group of riders in the Bay Area.
The original website was created in March of 2006, and went through a few minor changes over the first couple years.
As time went by the site became outdated and it was time for an overall...hence 2015's Cycling 4 Fun 2.0
Enjoy the site and the rides!

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