About
Calleva offers outdoor adventure and farm-based activities where participants can paddle, climb, bike, camp, and take part in kayaking, rock climbing, rafting, and horseback riding lessons. The program also includes farming and farm-to-table experiences, canoe and kayak rentals, equestrian programs, nature immersion experiences for elementary age children, and special events such as Markoff’s Haunted Forest, Pony Picnics, Pizza Nights, Farm and Forest Cubs, Saddle Club, Tiny Tots, and team building experiences on an aerial and challenge course.
• Ages: 3–18 years old
Calleva was first imagined in 1997 and was originally founded as a small summer camp, and for nearly three decades it has built a reputation for excellence in outdoor adventure and education. Its mission is to get all people outdoors, providing safe, educational, and challenging experiences that promote personal growth, group cooperation, and leadership skills. Olympic kayakers, top tier wilderness professionals, seasoned educators, high energy camp leaders, committed conservationists, and creative trades people and artists have contributed to the organization’s success. Calleva is nationally known as an innovative force in outdoor adventure and education, operates a full service kayaking school with evening and weekend classes for all ages year round, and emphasizes device-free summer adventure. The program includes farm-to-table operations with weekly Pizza Nights, a state-of-the-art aerial course, Explorers Virginia programs with age appropriate access to the river and more options for climbing and exploring, and dynamic, mobile programming that introduces participants to parks, trails, rivers, and rocks in the region. Calleva is described as a different kind of classroom, turning nature into a hands-on classroom for real-world learning, and closed-toe shoes are required at Calleva camp.
Calleva supports the Alice Ferguson Foundation’s conservation efforts by providing volunteers and resources for annual cleanups in the C&O Canal National Historical Park. It has supported outdoor adventure activities, campout experiences, and Eagle Scout projects with the Boy Scouts of America, and provides outdoor adventure experiences such as rock climbing for City Kids Wilderness Project. Calleva has partnered with Diversify Whitewater to facilitate weekend paddlesports events and worked with the Fairfax County NAACP on a joint project called Connecting the Community with Nature. It collaborates with Girl Scout leaders to create experiences aligned with scouting values and works every summer with Horizons of MoCo to create day camp experiences. Calleva has partnered with Soul Trak Outdoors to expand access to kayaking, supported Team River Runner by providing equipment, instruction, and other support, offers kayaking experiences in support of Wilderness Kids Alexandria, and has provided a challenge course experience as a kick-off to the Wilderness Leadership & Learning WILL-Lead program. The organization was founded by Nick Markoff, Alex Markoff, and Matt Markoff, and the last 30 years have taken the team to a wide world of adventure.
Last updated January 21, 2026.
• Ages: 3–18 years old
Calleva was first imagined in 1997 and was originally founded as a small summer camp, and for nearly three decades it has built a reputation for excellence in outdoor adventure and education. Its mission is to get all people outdoors, providing safe, educational, and challenging experiences that promote personal growth, group cooperation, and leadership skills. Olympic kayakers, top tier wilderness professionals, seasoned educators, high energy camp leaders, committed conservationists, and creative trades people and artists have contributed to the organization’s success. Calleva is nationally known as an innovative force in outdoor adventure and education, operates a full service kayaking school with evening and weekend classes for all ages year round, and emphasizes device-free summer adventure. The program includes farm-to-table operations with weekly Pizza Nights, a state-of-the-art aerial course, Explorers Virginia programs with age appropriate access to the river and more options for climbing and exploring, and dynamic, mobile programming that introduces participants to parks, trails, rivers, and rocks in the region. Calleva is described as a different kind of classroom, turning nature into a hands-on classroom for real-world learning, and closed-toe shoes are required at Calleva camp.
Calleva supports the Alice Ferguson Foundation’s conservation efforts by providing volunteers and resources for annual cleanups in the C&O Canal National Historical Park. It has supported outdoor adventure activities, campout experiences, and Eagle Scout projects with the Boy Scouts of America, and provides outdoor adventure experiences such as rock climbing for City Kids Wilderness Project. Calleva has partnered with Diversify Whitewater to facilitate weekend paddlesports events and worked with the Fairfax County NAACP on a joint project called Connecting the Community with Nature. It collaborates with Girl Scout leaders to create experiences aligned with scouting values and works every summer with Horizons of MoCo to create day camp experiences. Calleva has partnered with Soul Trak Outdoors to expand access to kayaking, supported Team River Runner by providing equipment, instruction, and other support, offers kayaking experiences in support of Wilderness Kids Alexandria, and has provided a challenge course experience as a kick-off to the Wilderness Leadership & Learning WILL-Lead program. The organization was founded by Nick Markoff, Alex Markoff, and Matt Markoff, and the last 30 years have taken the team to a wide world of adventure.
Last updated January 21, 2026.
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