From its source in Dummer Lake, just south of Stoney Lake, the river meanders southward until it enters an area of limestone and vanishes.

Water not only erodes limestone, but can also dissolve it, creating spectacular caves and potholes in the rocks, known as kettles. But water is also able to seep between the porous layers of limestone and seemingly disappear because the river has found enough cracks to simply flow through it.

From the parking lot in the Warsaw Caves Conservation Area, a path leads past kettles and caves to the river.  A strange echoing gurgle of the water is heard as the river makes its way underground. About a half kilometre downstream, the water bubbles back up o the surface to continue its course to Rice Lake.

A popular spot for picnickers, the park also offers a small beach, trails, and a network of caves for the cautious explorer. But it is the disappearing river that will provide you with the most vivid memory of this peculiar place.