The next stop was Monkey Mia/Shark Bay. To explain: Shark Bay is located on a peninsula and is the name of this coastal region. Monkey Mia is simply a holiday resort. The special thing about this place is the dolphins that appear on the beach every day and are fed in front of the public. But let's start from the beginning. After another few hours of driving, we arrived at the beginning of the peninsula, where we could see the so-called stromatolites. Without background knowledge, it looks unusual but also unspectacular.
The special thing about stromatolites is their "builders". These are called cyanobacteria, which produce sedimentary rocks through their metabolism. Their heyday dates back 2.5 billion years in the past. Cyanobacteria were the first organisms to use photosynthesis on a larger scale and some books even refer to them as their "inventors". As a result, oxygen molecules were produced, which were massively released by the large occurrence of these bacteria. Consequently, a new composition of our Earth's atmosphere was created, which ultimately made life on land possible. The main part of oxygen production has now been taken over by plants and the number of cyanobacteria has significantly declined. In fact, there are only a handful of places in the world where they can be found. And that is exactly what is special about this place. So you stand there and look at these rocks. With the background knowledge and the very calm sea, you somehow get a certain feeling. This is the origin, the reason why there is life on land. We owe all of this to these bacteria, who are currently busy building on the stromatolites. And the only activity that can be observed are occasional bubbles of oxygen rising.
Arriving in Monkey Mia in the evening, there was just enough time to enjoy the sunset.