Mini golf’s popularity has naturally led to a host of miniaturized copycats, including toeball and nano-marbles, which is played inside a particle accelerator. Engage in the most timeless shrunken sport with this Groupon.

$18 for Four 18-Hole Rounds of Mini Golf (Up to $36 Value)

Ghost Golf’s indoor haunted-graveyard-themed course snakes through skeletal guardians, spooky crypts, and immersive special effects for nine holes of paranormal putt-putt fun. Wrought-iron gates cast deceptive shadows across the emerald putting surfaces, enhancing the creepy ambiance conjured by black-lit tombstones, crumbling gothic architecture, and a nonstop flurry of Phil Mickelson commercials. Putters loop the nine-hole labyrinth twice for each of their four 18-hole rounds and may choose to entice adventurous friends for a four-person round or play all four rounds with their favorite alter egos.