Camp Marist is an international, coed Catholic overnight camp on Ossipee Lake in Effingham, NH, serving campers ages 6 to 16 for over 75 years. Campers choose from more than 30 elective activities across athletics, adventure, nature, and creative and performing arts, including horseback riding, water skiing, sailing, tennis, and archery. The camp keeps a low staff-to-camper ratio and is ACA-accredited.
The practical details
We list only what the camp itself publishes, and programs change — dates, prices, ages and availability can all move after we check. Confirm the details on the camp’s own website and contact Camp Marist directly before you register or pay. Last checked August 2026.
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Accreditations & licensing
As stated by the camp or listed in the accrediting organization's directory — confirm current status with the accreditor.
Google Reviews
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★★★★★Anna FriedrichThe best summers my kids have had and now one of my sons is a counselor there in the summer 💯
★★★★★Paul GalbraithI spent 7 wonderful years growing up here. It was always so hard to leave at the end of the season and couldn't wait to return each Summer after.
★★★★★Maria baños murciaFor the best summer of your life. Camp Marist is such a magical and special place where you’ll make lifetime memories and friendships from all over the world.
★★★★★kiki arsenaWe brought your kids from Canada so they could learn to speak English (we are French Canadian). What they discovered was far more than that. We are happy to send the younger ones next summer.
★★★★★Hugh BevinsWe sent our daughter off Sunday to attend Camp this summer and the property is gorgeous! Staff are friendly and all the other campers seemed friendly also. My wife found them through a Celtics magazine that her friend had purchased at a game which I love they support my favorite team. We are excited to hear all the great stories!