Niantic and The Pokémon Company International are getting their explorer boots ready for Pokémon GO’s next in-game celebration, Pokémon GO Adventure Week. From May 18 at 1:00 P.M. PDT until May 25 at 1:00 P.M. PDT, Trainers can expect increased encounter rates for Rock-type Pokémon such as Omanyte, Kabuto, and their Evolutions. Players will also encounter increased encounter rates for some of the more elusive Rock-type Pokémon like Aerodactyl, Onix, and Sudowoodo.

During the Adventure Week celebration, more items will be available at each PokéStop to help Trainers stock up for their adventure. Buddy Pokémon will also find Candy after walking only one quarter the usual distance. Keep an eye out for a brand-new avatar wardrobe item, the Adventurer’s Hat, which will also be awarded to all Trainers for free.