I just returned from Rotorua last night, spent 5 days 4 nights on my annual fishing pilgrimage, fishing was great.
Browns ranged from 6.5lb to 11lb, Rainbows 3 to 5 lb. I got 2 or 3 browns per day, and 10 to 15 Rainbow’s each day in the Waiteti stream and stream mouth. I fished from 5am till 7am then 2 to 4pm and night sessions from 8pm till 10:30pm so it was casual fishing.
I stayed at the Waiteti Trout Stream Holiday Park, its worth a visit. The night fishing was with Lumo flies ( Craig’s night time, Alexandra and Dolly flies).
Day time using size 14 weighted hair and copper or black nymph either on indicator rig or sinking with figure 8 retrieve or Shrek with orange bead head and faster retrieve.