How to get there
You can only find Thrombolites in a few places in the world including Lake Clifton in the Yalgorup National Park which is approximately half an hours drive south of Mandurah. To get there you turn West off Old Coast Road onto either Clifton Downs Road or Mount John Road. The Thrombolite viewing platform is right near Cape Bouvard Winery.
Once you get to the end of either road you will see a small carpark surrounded by trees . There are picnic tables and a path where you walk to the viewing platform built specifically to see the Thrombolites. Informative plaques are dotted along this platform explaining what the Thrombolites are and why they are significant. There are walking trails in this area also. So if you come to view the Thrombolites bring your walking shoes, if you are keen to go on short hike!
What excactly are Thrombolites?
So what are Thrombolites? They look like rocks but there is much more to them than that! Thrombolites are ancient forms that photosythesize (produce energy from sunlight). Thrombolites are different to the Stromolites that can be found in Hamelin Pool in Shark Bay - they form in a different way. Thrombolites and Stromatolites were the only known form of life on Earth some 350 to 650 million years ago. Thrombolites are a rare natural phenomenon that provide an insight into ancient life on Earth.
According to West Australian Vista:
The lake contains the largest lake-bound microbialite reef in the southern hemisphere which is over 6kms long and widens in parts to 120m. The thrombolite structures reach heights of up to 1.3m.