Santa's Grotto was a place in the Lobby in the 2019 Christmas Event where players could turn in Presents for special rewards such as RGB Turret Sleigh, Candy Cane Sniper, Sleigh 2019 and Rudolph Shark.
This event returned in 2020 Christmas where everyone gets the Sleigh 2020 when sign in the game during the event and all other christmas item, with the appearance of the new Golden Speedboat.