The Great Marsh is an area located right to the north of Pastoria City. It is the main attraction of Pastoria City that gets many visitors and Trainers coming from around the area. The Great Marsh contains some Pokémon that cannot be found elsewhere in Sinnoh. It is filled with marshy areas, which are inhabited by wild Pokémon. Much like other Pokémon preserves in Kanto and Hoenn, the Great Marsh features a Safari Game in which Trainers pay to take part.
The Pastoria Gym is the official Gym of Pastoria City. It is based on Water-type Pokémon. The Gym Leader is Crasher Wake. The Pastoria Gym is a large indoor swimming pool comprised of three levels and numerous floating platforms. Switches on the floor of the pool raise and lower the water level.