Although Gates Tennis Center mainly focuses on the sport in its name, pickleball enthusiasts can enjoy themselves at the center's eight pickleball courts for just $6 an hour per person. But there's another major perk: three pickleball pros. If you want a private lesson, it's $60 an hour; grab up to five friends and you can split an $80 charge. Some of the tennis pros, jealous of how much fun the pickleball pros are having, occasionally step in to help with kids' classes, adding to Gates's pickleball coaching repertoire. Invest in your game or book a night of learning with friends; either way, you'll walk away slightly sweaty and fully satisfied.