Whaka have only conceded one try this season and will be hard to break down tomorrow.
Opotiki coach Mike Smith said they would try to improve from their last outing against the Rotorua side.
"We want to compete better upfront and at the breakdown where Whaka were pretty good. We're looking forward to hosting them this time and showing them our hospitality both on and off the field."
The game starts at 2.45pm in Opotiki.
Rotorua's other premier team Rotoiti will have a tough match against Mount Maunganui at Emery Park.
Rotoiti bounced back well last weekend, after losing to Whaka in round one, to defeat newly-promoted Rangiuru 51-13.
After the big win, Rotoiti coach Kevin Lee said they would get a good gauge of where they are at when they host Mount Maunganui. The match is being played at Emery Park at 2.45pm.
Baywide draw (Premier games start at 2.45pm and development games start at 1pm):
Opotiki v Whakarewarewa, Princess St Reserve; Rotoiti v Mount Maunganui, Emery Park; Rangataua v Te Puke Sports, Te Ariki Park; Greerton Marist v Rangiuru, Greerton Park; Tauranga Sports v Te Puna, Tauranga Domain.