La Gomera mist, and as a result are covered in lush and diverse vegetation: they form the protected environment of Spain's Garajonay National Park, which was declared a UNESCO World Heritage Site in 1986. The slopes are criss-crossed by paths that present varying levels of difficulty to visitors, and stunning views to seasoned hikers. The central mountains catch the moisture from the trade wind clouds and yield a dense jungle climate in the cooler air, which contrasts with the warmer, sun-baked cliffs near sea level. Between these extremes one finds a fascinating gamut of microclimates; for centuries, the inhabitants of La Gomera
Tabarca reserve called "Reserva marina de la Isla de Tabarca", declared a Zone of Special Protection for Birds by the EU, with a varied marine fauna (sea bass, grouper, conger eel, gilthead etc.). It is surrounded by very clear and unpolluted waters. The island is formed by materials of volcanic origin on top of which limestone and quaternary deposits have settled. Tabarca was the last Spanish Mediterranean location where the critically endangered Mediterranean monk seal successfully bred before it became extinct in this part of its range in the 1960s. This proves the high quality of the waters around the island