Laval St Germain is a Canadian who has climbed the highest mountain on every continent, the seven summits, including  Everest, from the north side, without supplemental oxygen.  He was the first Canadian to do so. 

When he visits a new country, he always tries to summit its highest peak: And he visits a lot of countries because he’s a commercial airline pilot. 

Laval's website    Instagram     The Adventure Audio Podcast