Bed bugs were found at one of the Nature's Classroom locations in Charlton, Massachusetts.
According to the envrionmental camp, the bed bugs were found in numerous residential rooms at the environmental camp.
The Union Leader reported students from Litchfield Middle School were at the four-day camp this past week and came home a day early due to the bugs.
After one student discovered suspicious bits on his arm the school decided to end the trip early.
The camp brought in a canine to determine whether any of the residential rooms were infested and found bed bugs in three rooms.
All of the rooms and luggage are being heat-treated.
Nature's Classroom has twelve New England locations, four of which are located in Massachusetts.
Lynn Woods Elementary School and Shoemaker Elementary School have cancelled their class trips to the camp which were scheduled for next week.
Bed bugs were previously found at the Nature's Classroom site in Freedom, New Hampshire, back in 2014.