Frisbee Golf
Grab four or twenty of your golf discs and head for the hills – or the forest, the park, wherever. Make up the course as you go. Try not to forget it or get lost. Get better and head to an established course to mingle with other golfers. Wherever you play, the vibe is casual. You get to walk around with a bag of clubs (well, discs), tee off, approach, putt and chill at the clubhouse, wherever you deem that to be. Then there are all the polished shots and wicked spins you learn as you get better...
PDGA Online Disc Golf Course Directory
Many city parks have golf courses already set up. Most are free to play as often as you like. Disc golfers who do not have the benefit of a permanent disc golf facility in their area often "make up" courses in nearby parks and green spaces.