Before miniature golf, mankind's only uses for black lights were checking clothes for excess lint and warding off shadow puppets. Use light's full potential with today's Groupon: for $10, you get 18 holes of glow-in-the-dark mini golf for two people and two glow bracelets at Putting Edge (up to a $21 value). Though rates vary depending on age ($8.50 for golfers 12 and under; $10.50 for golfers 13 and older), this offer bestows a significant savings for duos of all ages.

Putting Edge's phosphorescent indoor mini-golf course challenges the eyes, ears, and short-game prowess of players of all ages. The 18-hole course confronts club wielders with twists and turns amid a glowing battleground populated by painted neon trees, glowing statues, and iridescent wildlife conservationists. Upbeat music channels players' adrenaline as they expertly navigate their way through the incandescent irrigation routes and prove to competitors that their putting skills, like the bottom of Lake Michigan or Celine Dion's hair, are untouchable. Both golfers are equipped with a glow bracelet that shines as brightly as the course's black-lit critters, ensuring that no visitors are hazed by glowing parakeets. Though not included in this Groupon, players may also hone joystick skills and grapple for prizes at Putting Edge's arcade. The glow-in-the-dark atmosphere encourages friendly competition for players of all fitness levels, birthday parties, and group gatherings.