A "no wake zone" has been established in Okawa Bay to stop waves impacting homes along the lake edge.
The temporary no wake zone, which is in place until 8am Monday, was put in place by the Bay of Plenty harbourmaster Peter Buell because of the high water level of the lake.
It means boats, jetskis or any other motor powered vessels can not travel at speeds that create a wake in the area.
"Because there are a number of properties exposed to the high water levels we hope this will reduce the risk of water being washed further onto their properties," Mr Buell said.
Levels in Lake Rotorua and Rotoiti are decreasing. The Okere Gates have been fully open for two weeks and remain open today.