Castillo de San Miguel (Garachico) Monument · Garachico, Tenerife - Icod-Daute-Isla Baja, Santa Cruz de Tenerife A fortress whose construction was authorised by a royal decree of Philip II on 25 July 1575, with work continuing until 1577. It survived the 1706 eruption, which buried much of the town around it. It has been declared a Bien de Interés Cultural (Spain's highest level of heritage protection) with the category of monument since 1985. 1575-1577, BIC 1985 Photo: Wolfgang Sauber (CC BY-SA 3.0) What to see and do in Garachico