Although their new stargoyle friend probably thought they were crazy for spending so much time in the freezing water just because of a little mud. They were both of the opinion that their stargoyle friend had no sense of smell. They'd likely be correct in that assumption.
Finally, they had finished making sure they were nice and clean for the rest of their journey so that they would be ready to move on to the next part of the caverns. Hopefully they didn't have much more that they had to map out.