Rolanda and Kermit had gotten to the river but the river was flowing fast. They didn't know where they were being taken...
They had been carried to a lake! They were peacefully floating enjoying the hot sun, about to evaporate when an animal drank them up. Neither of them saw it coming and wondered what type of animal it was.
They had been incorporated into the body. It looks like they're going to stay there longer than they first thought.
They made their stay very homely, but they've almost outstayed their welcome. They were excreted out of the animals body.
They spent the rest of their days in the retirement home inside of the big oak tree. The water cycle is a fun journey, especially for Rolanda.(and Kermit)