Maybe you could do your own business as a trainer for rock climbing(maybe in a gym or close place). 

For me, I must hit the gym every day, spend time in prayer in the morning, and be intentional about building relationships.

Lower expenses by canceling reoccurring expenses (gym, Xbox live, Netflix, Apple Music and so on) eat at home things like that the little things add up I recommend budgeting and tracking to see where you can make those cuts.

Buy a year membership at your favorite gym/rec center/martial arts center/yoga studio.

Long story short, I would later visit in jeans or gym shorts, bought myself an old beat up Toyota Camry, would only go out with hours of daylight left, and got myself a CPL to carry every visit thereafter. - Parenting/family issues.

Ohio, where I live, closed all gyms, movie theaters, restaurants and bars other than carry-out and delivery. 

I use one room as a gym, one as an office, then a bedroom.

If they want access to the gym and the pool, that's a yearly fee.

The condo is in a midrise building with the $525 HOA covering all utilities (unmetered), amenities (pool, gym, game room, etc), parking, snow removal, security, master insurance.

However, they are also in predominantly high income areas.Another idea:My off-site office is in a high end private gym.