From Bulbapedia, the community-driven Pokémon encyclopedia.
The Airport (Japanese: エアポート Airport) is a location found in the game Pokémon Card GB2: Here Comes Team GR!. There are actually two locations with this name; one on the TCG Island and one on the GR Island. On TCG Island, the airport is located on the lower-east side, while on GR Island the airport is located on the green lower-west island. When first entering the TCG airport, an NPC will be blocking the side door to a blimp. The player can travel between the two airports by riding the blimp, when he or she has first collected all four pieces of the GR Coin.