Nearly anything and everything you wish to do can be found in Boston. We have listed the most common recreational activities.
At MIT in Cambridge is a Lindy Hop Society and they offer lessons and regular events. It does not appear one has to be an MIT student to attend, but that may have changed since their information was updated.
Salsa Boston is the one stop shop for all things salsa dancing in Boston. Their website is very comprehensive and has a guide to clubs and lessons throughout the city with corresponding cover charges and hours.
Sailing is very popular in Boston, and happily, they make it easy for others to learn. You don't have to own a boat to learn how to sail.
Community Boating offers classes for windsurfing, kayaking and sailing.
For all things sailing, check out the Boston Sailing Center. Classes, suggested itineraries and charters are all available.
Outdoor ice skating runs from mid-November to mid-March. Frog Pond at Boston Common is turned into ice skating during the winter and a wading pool during the summer.
The closest indoor roller skating rink we can find that's still active, is in Saugus, MA, about 20 miles north of Boston. Roller World has a galactic theme, and the hardwood floor is often aglow with the neon lights from above. Happily, Roller World has a beginner's skating floor where one can practice for balance before going out on the floor with more experienced skaters. And if roller skating isn't your thing, Roller World also has line dancing and ballroom dancing events.