In the film the characters are hiking to "Higgins Creek." This is a reference to "Higgins Haven," the primary location of Friday the 13th Part 3 (1982).
The main antagonist is called 'The Shape.' This is a reference to the slasher icon Michael Myers of the Halloween franchise, who was originally credited as 'The Shape'
Jamie Bernadette's character is named Jess in reference to the "Final Girl" from Black Christmas (1984): "Jess," played by Olivia Hussey.