DIY Sand and Rock Box by FSPDT. Gdjk -> made this with toilet rolls (aka tunnels) and moon sand instead of play sand. My son loved playing with it. The moon sand cleans up nicely indoors but play sand will be easier to play with when using the small cars.
I love the "frosted" glass instead of a solid wall used in this space! the space created for the"water closet" in new homes today is so tiny; this would at least give the feel of a bigger space, and add character to the entire master bath.