In his 30 years at Williams, Outing Club Director Scott Lewis says he’s never seen a Mountain Day gathering as large as the one that took place on Friday, Oct. 1. You can experience—or relive—the magic of the day in this Flickr photo collection. And the video below beautifully captures the spirit of a day dedicated to getting outdoors and enjoying the restorative benefits of nature and community.

Share your own Mountain Day experiences on social media using #mtnday!