Here are the best Groupon deals in D.C. this week:

$16 for an adult pirate tour

The Boomerang Yacht is a two-floor boat that sails past all the historic sites in D.C., including the Watergate, Jefferson Memorial, Key Bridge and Georgetown. And what's a pirate boat without a full bar and DJ?

60% off Blacklight Slides

This 40-foot slide is coated in glowing water while an EDM DJ blasts in the background.

Up to 50% off Nationals Tickets

Groupon offers tickets to Nats games throughout the summer. Choose your date and section for a discount.

$25 Beer Festival Tickets

The Red White & Brew Beer & Wine Festival takes place Fourth of July weekend. Every general admission ticket gives you access to free tasting, live music, food trucks and 100 different wines, beers and ciders.

Private and Public painting lessons for 20 dollars

Art Studio 205 in Temple Hills is offering discounted tickets to instructional paint classes, invite your friends and make it a party!