Brickpit Park - NSW
Manoj and Jasu Patel Lake in the brickpit is an amazing emerald green. Only happens once a year (4nov2018), see it while you can. Best viewed on a sunny day to see the glowing effect.
35 Willoughby St, Epping NSW 2121
(02) 9806 5140
Google map: https://www.google.com/maps/place/?q=place_id:ChIJh9rxYRmkEmsR00gDqWJO1nU