Scouting-like organizations for adults

I don’t know of any long-term programs like that for adults (who would have the time/money?), but things you could consider:

  1. Becoming a scout leader or an adult guide for similar programs. If you don’t like kids, Venturing is for 14-21 year olds

  2. Joining or starting Meetup.com outdoor groups

  3. Taking classes at a local REI or rock gym

  4. Checking your local colleges/universities for outdoor workshops (run as auxiliary programs for all community members, student or not, that usually run for a few days or a few weekends at a time)

  5. Taking or teaching NOLS classes

  6. On a vacation, joining a Sierra Club or REI.com outing

These mostly lack the structure of scouting (unless you’re an adult leading a similar group), but they do have the skill-building and meet-new-people aspects. Their primary difference is that they’re far more specialized and targeted towards particular activities, rather than “building character and skills” together.