Seaside Hollow

2 Pokémon can be caught at Seaside Hollow in Hisui.

The Seaside Hollow is a modest cave in the northern Cobalt Coastlands of Hisui, opening from the north-facing cliffs of Veilstone Cape west of the Tidal Passage; reaching it requires Ride Basculegion. Inside, the round chamber is entirely empty, its stone walls and ceiling tinged faintly blue. The cave is central to Request 66, "The Sea's Legend", during which Manaphy and Phione, the Mythical sea guardians, can be found here.