You know your swimming pool is big when it comes with its own man-made mountain.
And that mountain, in turn, houses its own host of secret pools and waterways, including a 54-foot long underwater tunnel to scuba-dive through, if you're so inclined. At a cost of $2 million, the complex also features five waterfalls, a lazy river which winds its way through the property powered by underwater jets, a full kitchen and a private bathroom -- both of which are also built into the mountain.
The pool, which resides in the backyard of a homeowner in Utah, was featured on Animal Planet's "The Pool Master" earlier this month.
WATCH a segment on the pool, above.