Looks like the interior view of the mountain hideout after the Grinch stole a Boyscout jamboree. Somewhere there are very sad and perplexed Boyscouts standing in an empty field wondering where everything went while they were swimming in the lake. And if they looked behind them they would see the canoes, paddles, life jackets, BBQ pits, and the last of the coolers getting hauled off to parts unknown. But the Grinch is a sly one who knows they will not look in the right direction until he has absconded with the last of it.