Get ready for the Pokémon Go Holiday Part One event! Running from December 17th to 22nd, this festive event brings double XP for catching Pokémon, halved egg hatching distances, and exciting new encounters.

This year's festivities include the debut of a costumed Dedenne (with a shiny variant!), and the first-ever appearance of Shiny Sandygast. Wild encounters will feature Alolan Sandshrew, Swinub, and Darumaka, while raids offer a variety of holiday-themed Pokémon. One-star raids feature winter-outfitted Pikachu and Psyduck. Three-star raids will challenge you with Glaceon in an Undersea Holiday outfit and Cryogonal, and Mega Raids star Mega Latias and Mega Latios.

Seven-kilometer Eggs hold the possibility of hatching Hisuian Growlithe or a holiday-ribboned Cubchoo. Complete event-themed Field Research tasks (including a $2.00 Timed Research) for encounters with themed Pokémon, Premium Battle Passes, and other rewards.

Collection Challenges return, rewarding Stardust, Poké Balls, and Great Balls for catching and raiding. Show off your holiday Pokémon in PokéStop Showcases! Don't forget to redeem available Pokémon Go codes for free items.

The Pokémon Go Web Store offers two limited-time deals: the Ultra Holiday Box ($4.99) with storage upgrades and Rare Candies, and the Holiday Part 1 Ultra Ticket Box ($6.99) including event access and a Premium Battle Pass. Stock up on supplies for the holiday season!