@Bad Santa ,you mentioned ski slopes ,so you will be flying predominately over snow ,be aware that the downwards sensors could have trouble recognising the terrain beneath the drone, and if it is sunny ,then the glare could confuse the OA ,and...
Bringing a cold drone into to a humid indoor environment may induce condensation on critical systems, especially the camera. It depends on the drone as to how well it’s sealed. When in doubt, bag it before bringing it indoors and then let it warm up.