Well, no shortage of mud for the pigs. Will it dry out quickly though? They can not stay in all mud. You will start foot rot and myriad other problems...
Best get a good hunter and get it established BEFORE the vermin get set in. It's what we always did and it worked great in the barn.
Yeah, it dries quickly. Next day it was mostly solid. This spot fills up because it's a major throughway fro water, but it drains well.