If you’ve followed Perfect Duluth Day for long, you know how to play “Where in Duluth?” A photo from an undisclosed spot is posted, people guess the location in the comments, someone eventually gets it right and everyone else admires that person’s brilliance. But now, as part of PDD’s 15th anniversary celebration, there are prizes on the line.

Duluth’s Duluthiest website celebrates its anniversary on Friday, June 29, at Wade Stadium as the Duluth Huskies face the Thunder Bay Border Cats in Northwoods League baseball. PDD will have a canopy at the game from 6 to 9 p.m. and representatives will be on hand to pass out birthday cake and give away various prizes. There will also be a drawing with 15 names in it for three special prizes — for the “Where in Duluth?” champions.

Here’s how the “Where in Duluth?” challenge works:

• As opposed to the usual “Where in Duluth?” posts, the contest images feature the PDD Angry Seagull mascot in the frame.
• As usual, the first person to guess the correct location in the comments to the post is the winner.
• Each winner will be entered into a drawing for the three fabulous prizes.
• The drawing will be held at Wade Stadium the night of the party. Winners need not be present to collect a prize.

Prizes: 

Daypack: A North Bay Daypack with padded laptop sleeve from Frost River. This classic pack is styled in waxed canvas. Check out more from Frost River on Facebook, Instagram or Twitter.

Loll Chair: A charcoal grey Adirondack chair from Loll Designs. Check out more from Loll Designs on Facebook, Instagram or Twitter.

Rafting Adventure: A 4-to-6-person excursion from Minnesota Whitewater Rafting. The winner will receive a certificate good for a 4.4-mile trip on the St. Louis River this summer in a dam-controlled area. Learn more about Minnesota Whitewater Rafting on Facebook, Instagram or Twitter.

Good luck with your “Where in Duluth?” speed and skills. See you at PDDXV!