i didn't take a picture of the original set up i did for him but i had rubble kind of set up in a little cave for him to go into but here are a few shots of what he did over the first week
he had dug out a second entrance at this point
back to one entrance but now he goes out at night and is piling up sand where he likes to hang out
this last shot is the most recent and as you can tell he has grabbed a nearby piece of rubble that had some zoa's on it and that is his new front door lol