The Airplane Den is a members only den that you can get through any gift card for limited time through October to January.
Walkthrough[]
When you first enter, the outside will be a grassy field in the afternoon. When you follow a road path, you'll go to the airplane. Its tail will have a paw print on it on the plane. When you enter the airplane, there will be a ladder like bamboo ladder to enter the plane. Inside will be a big room in front for the pilots seat and co-pilot. There will be 5 seats in the row of the plane. In the back will be the kitchen for food.
Also, there will be an airport and waiting room behind the plane. Inside will be a snack bar, waiting seats and a desk. It is small though.