A lot of places talk about 'stepping back in time', but here, you really are! Stromatolites are, in essence, living fossils. In fact they're a perfect example of the earliest life on earth (one of only two in the world). The water is twice as saline as seawater, making these rock-like outcroppings (sole) kings of the pool. The best time to visit these mind-boggling microorganisms is between June and October.