Lake health warning after rain Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Contact the authorby Jacob Traynor January 15, 2021 People should avoid swimming in Lake Colac 48 hours after rain, new signs advise. Unlock full access to Colac Herald - Subscribe today! Subscribe Now Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X