I have read comments by others that have done Meetup that Meetups attract a lot of weird people, especially weird guys looking for dates. I looked into Meetups in my area and a lot of activities demanded some kind of fee for a particular activity. So I have no interest in that. I wouldn't be interested in walking groups. Maybe hiking...but it isn't the right season for that. Maybe this summer I will participate in some hiking activities. Although once again people have commented that although hiking and walking are nice activities one doesn't really meet people doing those activities. They are mostly just one-time entertainment. I have done hiking groups in the past and found this to be true.