Broadway Stars Drew Gehling and Julia Mattison Marry in Starry Camp Wedding Weekend

Drew Gehling and Julia Mattison had one Wet Hot American Summer wedding!

The Broadway stars — him of Waitress and her of Godspell — used the 2001 comedy as an inspiration for their "I dos" on Sept. 16, throwing a playful, three-day adult summer camp-themed celebration at the luxurious Cedar Lakes Estate in the heart of the Hudson Valley, New York.

"From the moment we met, this day was inevitable so having it finally arrive these many years later is a gift in and of itself," Gehling tells PEOPLE.

It was a starry affair, with Waitress composer Sara Bareilles and fiancé Joe Tippett as well as Darren Criss and wife Mia Swier among the 140 guests. And like any good camp, Gehling, 40, and Mattison, 35, packed the party with plenty of activities, from kayaking and ziplining to a talent show where several of the talented wedding-goers performed.