Yes, this is a thing.
A few years ago I attended a week-long chamber music workshop for amateur adults at my alma mater, UNC Chapel Hill. My colleagues thought it was a crazy way to spend vacation time, but it was the most rewarding experience I had had in a long time. Anyone who did something well in college and gave it up to get a real job knows how much you miss that sense of accomplishment.
You too can revive your youthful passion at a summer camp!
There are many great camps for adults serving a variety of interests. Some last a week while others take place over a long weekend. While there are tons of experiential vacations out there (everything from ranching to surfing to wine making), this list aims to align to the types of camps we send our kids to.