hehehe i am the River person give em 5G i will take you around the underground
The River Person (yourlittlevaporeon) is a hooded figure with white eyes who provides transportation services to Snowdin, Waterfall, and Hotland on their wooden boat for the Underground. The protagonist can request a ride to any of the locations above if the protagonist reaches Hotland on any route.
During the trip, they have a list of messages they can say at random, often being a hint to a secret or an allusion to something in the game, or just something cute. At least one hint – the hint to finding Temmie Village – is specifically scripted to occur.