The Mare Longue waterfalls in the gorges of the Black River and an absolutely magical place, the route is quite easy and does not require much difficulty with a walk of about 4 km through the forest, you can admire a very beautiful view near of the reservoir. And above all the water of the waterfall is a crystal clear and transparent blue, great for cliff jumping from the top of the waterfall which measure around 6mts the depth of the pool is around 8mts