A rare phenomena occurs during selected months of the year that makes the Amazon even more appealing to the general masses, not just to nature enthusiasts and environmentalists. In Amapa/Para, Brazil, there occurs a tidal bore. It normally happens in the entrance or mouth of the Amazon River and is more locally known as pororoca and it only transpires every spring tide, which makes it a great vacation must see.
According to the experts of this observable and fascinating fact, tidal bores only happens in 55 different waterways around the world. How are they formed? Bore waves are formed two currents collide with each other. One is at the top pushing forward towards the exit while the other current, the one below, pushes towards downstream. This difference in currents creates walls of water that could rise up to 15 feet and moves at the average speed of 13 miles per hour. The bore creates great thunders of roar that can be heard even at a great distance. This great wall of water can cause devastation to the surrounding infrastructures and vegetation. But recent intervention from the residents near the mouth of the Amazon has prevented further damage.
The Amazon being the longest in the world, consequently, the Amazon Bore has the longest and largest ridable wave in the South American region. This has become a haven for surfing enthusiast after the phenomenon was discovered. Every year, there have been tournaments in that takes advantage of the Amazon Bore. This is also the reason why more and more people come to visit the Amazon.