If you visited Lochearn Camp For Girls, nestled on the shores of Vermont's Lake Fairlee, during the summer months you'd likely hear the sounds of tennis balls hitting the court, horses trotting in the nearby corrals and girls laughing as they canoe in pristine waters.

But this year, the grounds are much quieter without the roughly 360 campers Lochearn welcomes each summer. Amid the coronavirus outbreak, camp director Tony Oyenarte and his team decided to close the overnight resident program for the 2020 season. "It was the hardest decision I've ever had to make as a camp director and as a businessman," Oyenarte tells CNBC Make It.