The Center for Wooden Boats www.cwb.org at South Lake Union is fun and educational all wrapped up in one. 
It’s interesting to see the volunteers at work bringing life back to boats that have been around for many years. Along with boat rentals and sailing classes they also have workshops and lectures year round. They even have free boat rides each Sunday for all ages, young and old. Walking the docks, exploring the boats and browsing the exhibits is always free of charge. The Center for Wooden Boats is just a short ride from downtown Seattle by car or if on foot while exploring Seattle you can ride the South Lake Union Streetcar www.seattlestreetcar.com which stops at The Center for Wooden Boats.