Daily, ongoing, 9 a.m.–5 p.m.
Chestnut Gate, 3101 Lyon St., Presidio
Walk, run, or race between checkpoints using your smart phone as a map and compass and your own navigation skills in this physical and mental outdoor sport. All fitness levels and ages. $5, checkpointchallenges.com
![Photo: Annie Albagli, We Become [Vessels] (video still) / THECJM.ORG](https://www.marinatimes.com/wp-content/uploads/2023/03/video_still_we_are_vessels-640x360.jpg)
