Tap ground to walk, tap water to sail, tap your boat to board. Drag to turn the view, pinch or scroll to zoom. Before the water comes back, get into the boat or onto ground above the white dashed line. You can swim a short way, but not far. Your detector beeps near buried finds; tap a flag to dig. Sell finds at the dam office to buy gear. The reservoir runs north through the Narrows to an upper lake, with a side arm to the east, and two caves to find.