The CASE 13 expedition was organised by A.P. Karpinsky Russian Geological Research Institute (VSEGEI), Russia and the Federal Institute for Geosciences and Natural Resources (BGR), Germany.
26 scientists visited key areas on the Anjou and De Long islands for studies related to the geological history of the Arctic, natural resources and palaeobiology. The expedition used the icebreaker "Mikhail Somov" as base. During fieldwork I hid four geocaches in places that I assume will be revisited by later expeditions:
Kot'lny Polar Station, Kot'elny Island (GC364DX)
Zhokhov Polar Station, Zhokhov Island (presumably muggled almost instantly by the someone from the ship's crew. Thus not listed on geocaching.com. Coordinates are: N76.163088, E152.830447)
Henrietta Polar Station, Henrietta Island (GC36AQX)
Toll Memorial Cross, Bennett Island (GC36AR4)
All geocaches feature a completely waterproof box, waterproof logbooks and a number of CASE 13 expedition logos as souvenirs. Bring your own pen. I assume that all geocachers who have the luck to visit this cache are well aware of the dangers in the high Arctic as, e.g., polar bears.