[cableshaft]

I'm familiar with the chat during (harder for the faster pace ones, though, another reason I prefer casual pace) and parking lot afterwards. If I have to turn back at or before the halfway point for most of these I imagine I'd be waiting a while in the parking lot for them to get there, though. Also from social pressure (and feeling embarrassed of having to turn back) I'd want to try to do the full trail and I'd regret it afterwards, most of the time.

I'm aware I could start my own. I once was the admin of a different type of Meetup group that had over 1000 members. It's just more way work than I have the time and energy for anymore, and also pretty expensive if done on Meetup.com nowadays ($200/year). For as infrequently as I'd host meetups it wouldn't be worth it.

I could also try to become a co-organizer of another group, but that would probably require me being able to go to enough of these for them to trust me to be a co-organizer.

It's certainly not impossible, but it's more hassle than I want to go through, for something that I can do on my own whenever I feel like it (and with my dogs).