Results

5K & 10K map adventure courses: Enjoy majestic oaks, quarries, rocks, & labyrinths of Lime Ridge! Find 8-15 checkpoints by using a map, or maybe follow the person in front of you (if you trust them!). Preregister for lower fees. (Not a BAOC event)

A Valentine-themed adventure: Teams of 1-5 find lovely Hearts sculptures in S.F. neighborhoods, and other Valentine-themed spots, using a custom-made map; answer a simple question at each checkpoint. Preregister for lower fees. (Not a BAOC event)

Event for beginners through advanced; beginners and non-members are welcome; free beginner instruction will be available

(Continues from January) 2 hr/4 hr Score-O GPS course using the MapRun smartphone app; do-it-yourself course anytime in February (Not a BAOC event)

Enjoy a trail & wilderness scramble among the open spaces of Martinez, with lovely views; teams of 1-5 use a custom map to find up to 20 checkpoints in 2 or 4 hours. Part of the 2026 NAV-X season series. Preregister for lower fees. (Not a BAOC event)

At the Coyote Lake side of the park: Standard 7-course event for beginners through advanced orienteers; beginners and non-members are welcome; free beginner instruction will be available

3-day celebration of navigation, adventure, & desert terrain; 4 courses: mass-start “Adventure Trek”, traditional Classic, moonlit Night Goat, & twisting 3-dimensional “Maze” Middle; volunteers can earn discounts (entry deadline: Jan. 12)

Popular annual event; Fri: Middle NRE; Sat/Sun: 2-day Classic NRE; Mon: Mal Harding Extreme-O (entry deadline: Jan. 9; no on-site reg.)

A chance to see one of our popular parks in a different (cooler) season; beginners and non-members are welcome, with free beginner instruction available; kickoff event for the 2026 BAOC Youth Program; presentation of the 2025 BAOC Service Award

(Continues from December) 2 hr/4 hr Score-O GPS course using the MapRun smartphone app; do-it-yourself course anytime in January & February, or at a group event on January 3 (Not a BAOC event)