The excuse for this trip was Spitsbergen Marathon, the world's northernmost marathon. But we stayed a whole week, to experience as much as we could of this unique nature reserve. Here is the story Day by Day Day 1: Longyearbyen Day 3: In the mines Day 5: Barentsburg Day 7: Back home Day 2: The Marathon Day 4: Hiorthavn by Kayak Day 6: Adventdalen .