Early years in 1920 aged 30 The couple undertook an expedition to the
Caucasus in 1914 to return to
Russia after the outbreak of the First World War. Back in the Netherlands, Visser gave lectures on his journey. In 1916 a second trip to Russia followed. After the war, Visser worked as an attaché in the Dutch parish in
Stockholm in 1919. He was able to explore
Finland in the following years, to make another trip to
Switzerland and to visit the
Arabian Peninsula. In Stockholm, he met the well-known Swedish explorer
Sven Hedin and discovered the idea of exploring the
Karakoram. This mountain range in the middle of
Asia was still largely empty on maps. This fascinated Visser. Visser and his wife organized four expeditions to
Karakoram between 1922 and 1935, which at that time formed the inhospitable border between
British India,
Tibet and
Central Asia. The couple was accompanied by the Swiss mountain guides Franz Lochmatter and Johann Brantschen. During the first expedition in 1922, on eastern part of the mountain, around the
Saser Muztagh, was explored by the group. after the first Karakoram expedition With the same participants, a second expedition followed between November 1924 and January 1926, to the area north of the Great Karakoram, which at the time belonged largely to the
Hunza State. To investigate the animal world, biologist
Lex Sillem was part of the third
Karakoram expedition of the Fishermen (between February 1929 and January 1931). During this expedition, Sinkiang was overwhelmed by visiting
Kashgar and
Yarkand. The expeditions performed pioneering work for later
alpinists in the Karakoram. One expedition that climbed some lower peaks and explored the routes that would be used by later climbers to clamp the eight-thousand-one in the area. With the help of Afraz Ghul Khan and Muhammad Akram of the Survey of India, the extremely inhospitable Karakoram was accurately mapped. Visser studied the location, shape and flow of the
glaciers while his wife documented the local
flora. Visser findings found that the Karakoram glaciers hold the middle between those in the Alps, which originate in firnbekkens, and those in the Pamir (
Sinkiang and Russian Turkestan), which are mainly fed out of avalanches. This as the first time these glaciers were ever mapped.
Karakoram expedition findings and reports Back in the Netherlands, work was started on detailed
scientific expedition
reports published in different volumes between 1923 and 1940. Besides
glaciology, Philips Visser also took account of scientific dissertations on the population and
meteorology of the area. In addition, he gave lectures and wrote articles in
newspapers, giving the couple publicity. Following the third Karakoram expedition, Visser was appointed Dutch council in
British India in 1931. For this work, he moved back and forth between
Calcutta (the winter capital) and
Simla (the summer capital of British India). In 1932, the Fishermen received the unique opportunity to visit
Nepal, a kingdom that was still strictly closed for European travelers at that time. In 1933, they traveled to Dutch-Indie on behalf of the Dutch government. In the summer of 1935 a fourth Karakoram expedition followed and in 1937 a trip to Dutch-India was made again. ==Diplomacy career==