Only in Ultra Sun & Ultra Moon
SOS Encounter: Hau'oli City (15%), Kala’e Bay (15%), Melemele Sea (15%) + 2 more
Super Rod: Kala’e Bay (25%), Route 8 (15%), Hau'oli City (15%) + 1 more
Surf: Hau'oli City (15%), Kala’e Bay (15%), Melemele Sea (15%) + 1 more
Its base catch rate is 190 out of 255 (higher is easier); the catch rate calculator works out your odds with each ball. For the look, the best colour match is Dive Ball.
Evolution: Remoraid → Octillery (Level 25).
Remoraid in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)