Q: Where hamster??? A: If not visible then in the hut or a camera blind spot. Be patient. Q: What is this? A: A bunker for hamsters. Q: Is it underground? A: Yes. Bunkers typically are. Q: Where is this? A: Under my deck. Q: How do you clean or resupply? Do you have to dig up the whole thing every time? A: Of course not, the top level is above ground. The label "surface building" in the upper left might've been a clue. Q: How do the lower levels get fresh air? A: An electric ventilation pump and air hose. Q: Why is it so red? A: Hamsters and other crepuscular or nocturnal creatures prefer red light for comfort. Q: Is this a test run for underwater? A: No, there is already an underwater habitat counterpart to this project which has operated successfully for years. This is it's own thing, not in service of or connected to Hampture. Underground stuff is cool for it's own sake.