Main Camp is truly the best of the best! This five-week flagship session held in the middle of the summer is loved by all who attend. For the campers of Main Camp, there is one word that comes close to describing their experience: “unbelievable.”

For more than 50 years, Greystone only operated one eight-week session. The Greystone experience was built on this strong tradition, and it developed into the most unique summer camp experience available anywhere. Catering to campers who are 17 years old is a challenge that sharpened the experience for campers of all ages. With a population that is 95% returning campers (including a large group of high school girls), this is a sophisticated session full of girls who are committed to the whole Greystone experience. They love camp and their love influences all of us, making this a favorite session for everyone, including new campers.

Main Campers truly get to experience it all. With fourteen different activities to take each week, rotating 7 classes every other day, we offer our greatest range of activity options at this session. With advanced-level classes and a longer time to work within each skill area, girls can truly develop significant skill in the five-week time frame. Campers also have the options of a full Riding program, optional Rafting trip, overnight campout with their cabinmates, and much, much more.

Girls enjoy our very best Evening Programs and finest Greystone traditions at Main Camp. Pulling out all the stops and putting much emphasis into delighting this group, we enjoy surprising the girls with fun events and new activities. Girls also enjoy Sunday concerts with popular musicians, many dress-up events including Corn Roast and theme meals, the most impressive Carnival and 4th of July fireworks show, and an amazing Challenge and Watersports Day competition.