Although it's true that the swingers' clubs might make some people uncomfortable, we have an "adult" club here in Calgary that's not open every day of the week... so they've started a Poly meet and greet on the first wednesday of the month.
It's Poly people showing up for a Poly event, having Poly talk, and there's no "swing scene" going on at all.
Something to consider.. they charge a tiny admission for use of the space, but that's reasonable, and they supply snacks and non-alcoholic beverages too.
Anyhow, we've been enjoying it for sure. Food for thought for you perhaps.