The Biosphere Reserve Sierra de las Nieves is a natural area that has a high biological diversity, unique species worldwide. In this product, we propose two birding trails. We will visit two of the most representative ecosystems of the reserve: the mountains and river valley. Also we can see that man has always been present, discovering plants that for centuries have been used for home remedies . * The activity of botany can be replaced by a tourist and cultural activity. Day 1: Morning: We start from our residence at 9.00 am with our guide to the mouth of the Rio Grande. Once parked the car, descend to the riverbed. The tour takes us parallel to the course of the Rio Grande to its mouth in the river Guadalhorce. Birds sighted in this environment can range from wintering as the black stork, the cormorant or the lapwing, and summer residents, such as little ringed plover, the short-toed or egret. At lunchtime we will have a picnic, to enjoy in a natural way Alozaina. In the warmer months have the option to take a bath on the upper river, in an area known as "the Millana". Afternoon: The afternoon will be dedicated to recognize medicinal plants in the fields bordering the upper Rio Grande. In the growing multitude of useful plants, for example lavender, matranto, willow, thyme and altabaca. Later, visit the company in Alozaina "Art in Your Hands" where Mariló instructor will explain the main properties of medicinal plants and how to exploit them, as it has done in the region since ancient times. Day 2: Morning: At 9.00 am we leave with our monitor to Yunquera, where we leave the car at the gate that leads to the viewpoint of Puerto Saucillo. We are in the natural park of Sierra de las Nieves, an enclave of high ecological value. On the road we have to make fast we can spot the peregrine falcon, chough groups, the Crag Martin and Alpine Swift, and, dominating the sky, the majestic golden eagle. We cross a forest of fir, the true treasure of the park, home to many forest birds (woodpecker beaks, coal tit ...)