Where do you live and can I join your friend group? /s

I'm 37 and I cannot find people my age who consistently do anything physically demanding apart from hiking. There are plenty of people who will do once a month cycling or something but no one who hits the gym three times a week.

Do you live near mountains? Join a mountaineering club and take their classes. I was an instructor for years and it became a sort of a joke that the intro courses were transplants looking to make friends.

You’ll meet people involved in a wide variety of mountain sports. The bulk is climbers, skiers, and mountain bikers but a lot of unlikely overlap in paragliders/BASE jumpers (want to hike further and higher) and kite surfers for some reason.

Unfortunately not. I suppose that answers the question then.

>> I rock climb or ski 3 times a week for exercise.

That puts you in top 1-2% of most physically active people in the world. The rest of us dreads the thought of exercising 3 times a week :)