Trailmark is an adventure travel program ideally suited as a post-camp experience for students' ages 11-17. Co-ed trips travel to New England, the Northern Rockies or Southwest Colorado and are 7-14 days in length. Various trips may be combined to create a longer experience. Campers grouped closely by age, travel by van with 2 adult leaders, camping each night in either established or wilderness campsites.

Trailmark provides a supportive small-group environment, which fosters personal growth through active participation in a variety of adventure activities. Outdoor activities include whitewater rafting, backpacking, horseback riding, sailing, mountain biking, canoeing, sea kayaking, rock climbing, mountaineering, and service projects. No previous travel camping experience is necessary to have "the best summer of you life".