Riding on Icelandic ponies together with the Icelanders on Dyrafjord. From the left: Bjørn Helland-Hansen , marine researcher; Alf Wollebæk , zoologist, assistant to J. Hjort; Olav Hjort , brother of J. Hjort; Johan Hjort, marine researcher; leader of this cruise, Haakon Hasberg Gran , botanist; Fridtjof Nansen. From a marine research cruise to the Norwegian Sea, Iceland and Jan Mayen.