These are most often related to natural phenomena. Seeing an active Volcano in Guatemala, visiting a table-top mountain in Roraima/Brazil/Middle of nowhere, visiting a cave in Mexico etc.

When I am not working I do lots of sports on my time-off: Running, Floorball, Squash... Reading and meeting friends is also fun. I try to read novels in the original language which makes the process a bit slower but much more fun. I pick cloudberries and do some ice-fishing too. And then there is this travelling thing, although last time a had an entire month off I just went to Berlin, hired a flat and stayed in one place.