Chapter 17: Route 15 & Aether House, Route 16, Ula'ula Meadow, Lake of the Moone & Route 17 - Pokémon Ultra Sun / Ultra Moon walkthrough and guide - Neoseeker
Chapter 15: Route 10 & Mount Hokulani - Pokémon Ultra Sun / Ultra Moon walkthrough and guide - Neoseeker
Pokemon: Ultra Sun and Ultra Moon Walkthrough - Route 15 (Return) - YouTube
Tapu Village and Alola Route 14 - Pokémon Ultra Sun and Ultra Moon Walkthrough
Alola Route 15 - Bulbapedia, the community-driven Pokémon encyclopedia