National Parks opened Corunna Lake to the ocean on the afternoon of Friday, December 8 after the trigger point at the back of the lake was reached.
The lake level had increased after recent rains and the back of lake was crossing the Old Highway forcing National Parks to take action.
An excavator was called in on Friday afternoon opening a channel midway across the opening.
Water started flowing by mid-afternoon and was increasing in speed as the tide fell in the ocean.
The narrow channel will expand over the next 12 hours as more water poured out.
In more good news, reports are that the recent opening of Wallaga Lake is improving with the recent high tides.
That lake opening was done Bega Valley Shire Council on November 21 before the trigger point was reached in order to allow roadworks on the Wallaga Lake causeway road that was eroding.
Unfortunately the opening of both lakes has come too late for any prawn larvae to enter the estuaries, but the flushing of the lakes will be good for the lake ecology and marine life.
The general policy is to allow the lakes to get a high and full as possible to allow the best flushing. Any attempts by the general public to open lakes carries a big fine.