Get ready for the Pokémon Go Holiday festivities! Niantic's Holiday event, Part One, arrives December 17th-22nd, bringing bonus rewards, special Pokémon encounters, and seasonal challenges.

This event doubles your XP from catching Pokémon and cuts egg hatching distances in half. A new costumed Dedenne (with a shiny chance!) and the first-ever shiny Sandygast will appear.

Explore the wild for Alolan Sandshrew, Swinub, and Darumaka. Raids offer a festive lineup: One-star raids feature winter Pikachu and Psyduck; three-star raids include Glaceon (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 ribbon-adorned Cubchoo. Complete event-themed Field Research tasks (or a $2.00 Timed Research) for themed Pokémon encounters, Premium Battle Passes, and other rewards.

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

The Pokémon Go Web Store features 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) with event access and a Premium Battle Pass. Stock up on supplies!