The inn is the same filming location used in Près des yeux, près du cœur (2021) which also stars Janel Parrish.
There is a series of books of "Charlotte the Marmot" by Gerda Muller.
A recreation activity for children that's been around for years. Finding 'Charlotte the Marmot' comes from La Fouly, Switzerland. On a interpretive trail that has Charlotte hidden along the path. This was obviously the inspiration for this movie.
Airs in the UK as "room at the Christmas inn"