A couple’s bucket-list mission to hike dozens of U.S. national parks began with a visit to Yellowstone, and it was during a snowy trek through the first national park they had a lightbulb moment that’s now become a new award-winning board game.

Like many couples, John and Terry Binkele dreamed of using the freedom of retirement to travel as they set out to visit every national park, but they’re not sharing their experiences through exhaustive photo galleries, slideshows or a Facebook album.

Trekking The National Parks is a board game that started as a family adventure and became a family business. The Binkeles developed the game with their son Charlie, and now their concept has become a growing enterprise of trekking games.

“We love to hike,” John Binkele told Cowboy State Daily. “That’s been the essence of all of these journeys was to go hike the trails of each of these parks.”