Only in Sun & Moon
SOS Encounter: Haina Desert
Surf: Haina Desert (70%)
Walk: Haina Desert (70%)
Its base catch rate is 180 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 Ultra Ball or Luxury Ball.
Evolution: Sandile → Krokorok (Level 29) → Krookodile (Level 40).
Sandile in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)