Michał Leksiński*
Kosciuszko · Carstensz
Poland · Male
Born 12 Apr 1988
Peaks climbed
Kosciuszko list (Bass)
Carstensz Pyramid list (Messner)
8 Summits (both lists)
“Not known”: some summits on this record have no date, so this figure cannot be worked out.
≈ before a place or date: finish date not known. Some summits are undated, so we place the climber by the latest summit we can date; they finished on or after it.
Also confirmed ‡
- Kilimanjaro
- Aconcagua
- Elbrus
- Carstensz Pyramid
- Kosciuszko
‡ These summits are confirmed as part of this climber's 7summits completion, but the exact dates are not yet on record. We are still researching the details.
Biography
Michał Leksiński is a Polish climber, speaker and author, born in 1988, who climbed for the Happy Kids Foundation under the name 7 Happy Summits. He reached the summit of Vinson on 3 January 2023 and of Everest on 18 May 2025.
He completed all nine peaks of the Polish Korona Ziemi, which include both Carstensz Pyramid and Kosciuszko, on Denali on 3 June 2026.
Image credits: Photo: michalleksinski.pl · modified