良い(よい)匂い(におい)のする水(みず)(お酒(さけ))が流れる(ながれる)小さな(ちいさな)滝(たき)

One day, Gensuke slipped on a slippery, mossy rock in the deep mountains and fell down. Then, he found a small waterfall nearby with pleasant-smelling water flowing. When he drank the water, to his surprise, it was real, delicious sake.