Kotzebue is a small whaling town located on the northwestern coast of Alaska in the Kotzebue Sound (part of the Bering Sea). It's a very remote place, only accessible by air. I didn't find much to do there but was amused by "water skipping" which entails removing a snowmobile's foam seat and going full speed into the ocean. Many of them slow down and sink. In winter, the ocean completely freezes. In fact, it's so thick that if a 737 aircraft misses the runway they land on the ocean!