In 1912 he was member of German exploration voyage to Spitsbergen. His task was documentation by photographs and paintings. The voyage under the command of Herbert Schröder-Stranz and Alfred Ritscher as captain of the ship Herzog Ernst failed, and just seven out of 15 crew survived. In 1913 Rave published his experiences Tagebuch von der verunglückten Expedition Schröder-Stranz: mit Federzeichnungen vom Verfasser (Diary of the failed expedition of Schröder-Stranz).
