La Laguna Cathedral February 1819, a papal bull approved the division of the Roman Catholic Diocese of Canarias in two dioceses. The temple became a cathedral in 1819 by bull of Pope Pius VII, and the new diocese of La Laguna was created. The Diocese of San Cristóbal de La Laguna includes the islands of Tenerife, La Palma, La Gomera and El Hierro in the province of Santa Cruz de Tenerife. In obtaining the title of cathedral and the creation of the Diocese it had an important role priest Cristóbal Bencomo y Rodríguez, confessor of King Ferdinand VII of Spain and Titular Archbishop
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