Neck rolls and neck stretches
When snowboarding you store a lot of tension in your neck. This is due to the necessity of always facing the direction in which you are going (while doing turns or even tricks) and it is also due to the lateral position that we have on the snowboard.
After your snowboard session it is very important to start by relaxing the neck. You can do your neck rolls and at the same time focus on your breath to find the right concentration and relaxation.