S'mores near public transit?

[sky-was-green.livejournal.com]

I'd really like to get a group of friends together and make s'mores before the summer ends, but since we're all apartment dwellers without access to grills, I'm not sure how to do it.

In my very suburban youth, there were a few parks with grills anyone could use, but I haven't seen anything like that around here (yet). Does anyone know of anywhere accessible by public transit conducive to marshmallow roasting? Fire pits would be preferred, but grills are good, too!