Combining Bio Substrate with 3d backgrounds

[jjhill001]

Alright, I've had snakes that poop in one corner and some that spread out the doooooo. I am planning a large enclosure with a custom rock background and a natural bio-active substrate with plants for my Baird's rat snakes when they get older. For those that have similar setups how do you go about cleaning a permanent structure if it gets pooed on? Just wipe it off? Clean it with something special?

Thanks.