Conversation is Main Activity
Playful and happy conversation is the main focus of activity in Third Places, although it is not required to be the only activity.
Just back (again) from Key West FL where we "joined" the White Street Pier Sunrise Society - some number of people between 2 and 20 that meet at a bench on the pier and watch the sunrise. Conversation is the main activity, but it's the amazing sunrises that get them out there.
I don't now have a dog, but I've observed that urban dog owners gather informally in off-leash areas at the same time for conversation and otherwise seem to fill the criteria listed in the post, although the only food is dog biscuits.
Are there other societies for watching the sunrise? Or maybe ones for sunset? I would really love to be a part of one, that sounds like a great way to gaze the twilight and reflect upon/look forward to the day.
If you're a seatraveler maybe you can start a sunrise society on some beach facing east. The sun seems to keep coming up over rooftops and cityscapes, but when it comes up over the misty sea, it can be spectacular. This pic was taken by the above-mentioned sunrise society. They bring their bikes and their dogs and sometimes visiting grandchildren, maybe a take-out cup of Cuban coffee...watch, chat, get on with the day.