Calleva, Inc.

“Calleva makes the outdoors accessible for all, and our program menu has got something for every adventurer.”

Retail and Business Office: 

19936 Fisher Ave. 

Poolesville, MD 20837

301-216-1248 |


For nearly 30 years, Calleva has provided outdoor experiences that inspire personal growth, encourage teamwork and provide a vibrant connecting point for friends and families in the Washington, D.C. area. 

Founded as a small summer camp in 1993 by Nick, Alex and Matt Markoff, Calleva has a reputation for excellence and innovation in outdoor education and outdoor adventure. Calleva operates from hubs in Maryland, Virginia and West Virginia, offering programs that include weekend and travel programs for adults, overnight wilderness experiences for teens, kayaking lessons, summer camp and farm-to-table events.

“Spending time outdoors is a great way to renew and refresh, no matter who you are,” says Matt Markoff. “Calleva makes the outdoors accessible for all. Our program menu has got something for every adventurer.”