Born March 4, 1937 in Mongolia, in a military family doctor.
. In 1960 he graduated from the Leningrad Naval Academy.
. Until 1991 he worked at the Institute of Space Medicine, then - at the Institute of Biomedical Problems at the Ministry of Health
. He participated in expeditions to Antarctica, where he spent a total of more than a year.
. Since 1973 - author and presenter of popular science program "Travel Club" on the I channel.
. Participated in numerous geographical expeditions, including in the international expedition led by Thor Heyerdahl on ships "Ra", "Ra-2 and Tigris, as well as in marine expeditions Timothy Siverina
. A member of expeditions to the North Pole and Mount Everest (responsible for medical support of the expedition).
. Since the autumn of 1991 - Advisor to the Chairman of the Supreme Soviet of Russia Ruslan Khasbulatov, with whom he had known during the teaching Khasbulatova, on medicine and international humanitarian assistance.
. From 1992 to 1996 - Chairman of the Board of JSC "editorial board" Russia ".
. In April 1995, became one of the founders of the Public Association "Club travelers.
. In March 1997, was elected chairman of a public commission, whose mandate included assessing the sculptural compositions of Zurab Tsereteli in Moscow
. In an interview program "Vremechko" 24 April 1997 stated that when the monument to Peter I selected the wrong height and location, but he condemns the possible dismantling of the monument.
. Since 1993 - president Medstroyinvestbanka.
. Author of the foreword to the book "Guide of the KGB on world cities (Moscow, 1996).
. Winner of the USSR State Prize for Research in Antarctica
. Awarded the Order of Merit to the Fatherland "IV degree.
Has the rank of colonel in reserve.
He is fond of classical jazz, traveling.
Contains the second marriage. Wife Xenia Sienkiewicz - English Teacher. Daughter of Anna - a doctor, the son of Nicholas - physician pulmonologist. Granddaughter Daria.
- Photos S. A. Sienkiewicz on the server of the Joint International Biographic Center: "The first trip," "The Crew" Tigris "(1977 - 1978 gg.)".