You could work on some of your navigation skills. For example, a book I have & like, Wilderness Navigation, has a bunch of practice problems in the back. Also, as I learned from comms on another thread, there are Navigation Challenge Books available that would help hone your skills in this area (I still haven't picked any up for myself, unfortunately).
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Victory awaits him who has everything in order — luck, people call it. Defeat is certain for him who has neglected to take the necessary precautions in time; this is called bad luck. Roald Amundsen