The demands of the hydro scheme can cause the lake levels to fluctuate wildly, but when the water is rising some spectacular fishing can occur. Trolling with shallow running cobra style lures and minnows. A depth sounder will help with locating the deeper drop offs and channels. Waggler or bubble floats with baits such as mudeyes, worms or gents can provide the hottest action at most times. For the fly fisher, large wet flies such as Crags Nightime or Matukas work well.
Rises do occur, so dry flies are an option.
For float fishing, the trees opposite and upstream of the boat ramp, the islands and the area in front of the power station outlet are good producers. Trolling along the Swampy Plains River course on the far bank from the boat ramp will get you into deeper water. A sounder will help here. Fly fishers will do well walking the shores and near the dam wall.