Grounded Halloween Achievement

Grounded Explorer Achievement takes place in South East part of Cursed Shore, North of Mausollus Sea. If you are looking only for the achievement you can get it easily, but if you want the chest, this is the area where [Group Event] Defeat the Risen pirate Captain Rotbeard takes place, with lot of level 80 regular mobs.

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Wooded Kingdom Moons in Super Mario Odyssey