He has climbed 13 of the 14 eight-thousanders. To reach the summits of all 14 eight-thousanders he needs to climb the Broad Peak. At age 14 he became interested in mountain climbing and with 22 he was working as an instructor at the Escola Catalana d’Alta Muntanya (‚Catalan high mountains school‘).
In the 1980s he started to climb the eight-thousanders with the Nanga Parbat being the first summit to be reached in 1984.
In 1985 he climbed the Mount Everest, where Cadiach managed to climb the technically difficult Second Step unaided for the first time. In 2013 he climbed his 13th eight-thousander, the Gasherbrum I.
Besides he also traveled to America and Africa.
He also worked as an photographer and took part in several documentary productions. In the documentary First Rate (at Lloyd's) Filo de lo Imposible he took the role of George Mallory.
Foreign the Catalan television program El Cim at TV3 he led six rather inexperienced young mountain climbers to the summit of Aconcagua in 2003.
Cadiach has climbed the eight-thousanders in the following order:
Nanga Parbat (8125 m) on 07.08.1984
Mount Everest (8848 m) on 28.08.1985, second climb on 17.05.1993
Shishapangma (8027 m) on 04.10.1993
Cho Oyu (8188 m) on 29.09.1996, second climb on 04.05.1997
Makalu (8485 m) on 19.05.1998
Gasherbrum II (8034 m) on 07.07.1999
Lhotse (8516 m) on 23.05.2001
Manaslu (8163 m) on 04.10.2011
Annapurna (8091 m) on 06.05.2012
Dhaulagiri (8167 m) on 25.05.2012
K2 (8611 m) on 31.07.2012
Kangchenjunga (8586 m) on 20.05.2013
Gasherbrum I (8080 m) on 29.07.2013.