Any suggestions for taking a summer class?

I live in NYC. Saw some people painting in a small class in Central Park and I thought, “Hey, I ought to ask Flutheronians if they’ve any ideas.”

I’d prefer to not give a background as to what I am into because, well, I want to try something new. My only stipulation is that it be non-academic because I am deep in the throes of grad school.

Thank you :)