I'm a big fan of anything that helps me hook up with local musos and this new(ish) site looks like it has possibilities

http://www.musomap.com/

You register and place a pin on the Google map with whatever details you like. It makes use of hashtags, so including things like #folk, #acoustic etc will make it easier for people to find you.

There's nearly 1000 people on there, but they are spread over the whole world, so the muso density in many areas is sparse. There's lots of classical people on there, but then it was started by a violinist. I've chatted with him and he's up for suggestions.

BTW We did Towersey as our first family and had a great time. The kids want to go back next year. Some cool workshops there.