How to approach someone I wish to be my mentor?

I'm part of a climbing club and I like the personality of one of the club leaders. She is ten years older than me, I really like her personality, she's great with organizing kids activities at the club, and she runs a bio farm with her family. She has two sons and what I observed she is a great mom to them.

I also started participating as a volunteer during the activities we have for children, and I plan to spend some time at a biofarm within a climbing community after my degree, just to have a break after school; both of which was kinda inspired by her.

I would like to be more like her and would like to spend some time with her to learn.
Is that ok and how should I approach her?