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The GR Water Fort (Japanese: 水のGR団のトリデToride GR Water Group) is a location found in Pokémon Card GB2: Here Comes Team GR!. Every TCG player in GR Water Fort focuses on -type Pokémon cards.
Grand MasterJack is imprisoned in the second room of GR Water Fort, but Senta frees him after being defeated by the player. Other members of GR Water Fort include Miyajima, Aira, and Kanoko, the Fort Leader. If the player defeats Kanoko, he/she is awarded with the GR Water Coin.