What does Montag do once he is at the river?

Montag touches the river to make sure it's real, takes off his clothes, splashed his face and body with whiskey, put on Faber's old clothes, and then went into the river where he allowed himself to be swept away.

He touched it, just to be sure it was real. He waded in and stripped in darkness to the skin, splashed his body, arms, legs, and head with raw liquor; drank it and snuffed some up his nose. Then he dressed in Faber's old clothes and shoes. He tossed his own clothing into the river and watched it swept away. Then, holding the suitcase, he walked out in the river until there was no bottom and he was swept away in the dark.