Huelva is probably my favorite province for my summer holidays, still much touched by foreign visitors. El Rocío does not have much to see, you can cover the whole place in one hour. Beautiful beaches nearby, and wonderful towns, like Ayamonte (I´ve spent three summer holidays there, it´s mainly local tourism), Bollullos Par del Condado (great wineries for the massively unknown D.O. Vinos del Condado de Huelva, having an orange wine and its white from Zalema grape as two landmarks), Niebla, Moguer, Palos de la Frontera (the three ships that arrived in the Americas in 1492 sailed from there), all the white (and really unspoilt) white towns of the Andévalo area, the towns along the Guadiana river separating Spain from Portugal (Sanlúcar del Guadiana, for example), Jabugo for the best ibérico ham in the world, amazing Almonaster La Real in a beautiful sierra and where the smallest mosque in the world is located...