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Pokemon Go—the app that reminded us what walking was like, made us forget about trespassing laws, boosted some restaurants’ bottom lines, and earned a fatwa from Saudi Arabia.

And now, it looks like it will entice thousands of enthusiasts to hit the National Mall on Saturday for a PokeWalk.

The event is set to begin at 1 p.m. on Saturday at the Jefferson Memorial. “We are starting at the Jefferson Memorial at the request of the National Park Service, and by the fact that the Tidal Basin area is a solid place to catch some Pokemon,” the Facebook post says. Organizers have already mapped out the routes for each of the three Pokemon Go teams, which differ but all end at the Washington Memorial. The National Park Service has also promised ranger-led tours of the Mall.

The walk plans to abide by the National Mall’s plea to be respectful of visitors and memorials while playing. The routes avoid the World War II, Vietnam, and Korean War Memorials, as well as the Holocaust Museum, which has told visitors it’s “inappropriate” to catch the digital creatures there.

More than 4,000 people have already indicated they’re attending, with 12,000 more saying they’re interested in the event. This isn’t the first walking tour for Pokemon users, and if the trend continues, it won’t be the last.

“We’re doing this because Pokemon is awesome and being able to share it with others through PokemonGO is an amazing experience,” one of the organizers, Daniel Anthony Gonzales, wrote on the event page.

Organizers are asking attendees to bring water and sunscreen, as well as a fully charged phone, but I’d like to see someone show up in this get-up.