Dry flies: During the early summer beetle patterns and cicada patterns in late summer work well during the day. Otherwise try smaller patterns such as a Adams or Blue Dun or a Twilight Beauty during the change of light in the evening.
Nymphs: Small nymphs such as Hare and Copper, Pheasants Tail and Halfback patterns are all effective. A small Theo's Bomber can also excite the rainbows in the upper section.
Wet flies: Small wee-wets such as a Greenwells Glory or March Brown fished across and down through the faster water can induce some very hard takes from these feisty fish. In the lower section a Wolly Bugger can also be effective and around the mouth of the stream at the lake, use bully patterns such as a Hamills Killer, Mrs Simpson or Kilwell pattern.
Spinners: Small bladed spinners such as veltics or Mepps in the upper reaches with Toby patterns and rapalas in the bigger lower section and around the mouth.