The floodgates opened at the Clyde Dam yesterday, water swells providing an eye-catching photo opportunity for onlookers.
Otago Harbourmaster Steve Rushbrook advised recreational boat users, kayakers and swimmers to stay out of swollen rivers and lakes containing hazardous floating and submerged debris.
The region has been hit by rainfall and rising lake and river levels this week and Contact Energy was spilling about 1700 cubic metres per second yesterday, twice the normal discharge.
"If there’s too much flow, don’t go," he said.