Aries pool by JakeAnderson
Suddenly the cliff fell away. The shores sank. The trees ended. Then Bilbo saw a sight:
The lands opened wide about him, filled with the waters of the river which broke up and wandered in a hundred winding courses, or halted in marshes and pools dotted with isles on every side; but still a strong water flowed on steadily through the midst.
– The Hobbit Chapter 10 A Warm Welcome