His first ascent was at 12 years old on the Vajolet Towers.He became a mountain guide at a very young age , at just twenty years old and shortly afterwards he was called to join the High Mountain Military Group of the Army Sports Center as an athlete.
On 10 August 2021, Peter Moser took on six of the main peaks in the Pale di San Martino mountains in a single day. Inspired by mountaineering pioneers, Peter made the solo crossing by following the historic routes of the first climbers, entrusting himself only to his experience as a mountain guide.
One of his most remarkable achievements is the "all in one breath" challenge, where he climbed 200 peaks over 2000m in the Lagoray-Cima d'Asta mountain range in just 15 days - a feat that would take most climbers a lifetime!