The Barranco Oscuro Nature Reserve is located in the Doramas Rural Park. Barranco Oscuro was declared nature reserve due to the fact it consists of a particular vulnerable ecosystem: a laurel forest which shelters some 40 endemic species of plants and invertebrates. The reserve is also home to a pine forest (pinar, in Spanish).
Tourists who want to get around and keep fit at the same time should opt for cycling in Gran Canaria. There are plenty of cycling centers on the island.
Playing tennis and squash in Gran Canaria is possible by force of the plethora of sports clubs and tennis courts located on the island.
The alternatives in terms of how to get from Gran Canaria to El Hierro are rather limited, since the sea and air line companies linking the two are fewer.