El Golfo and Los Hervideros, Lanzarote
El Golfo (Charco de los Clicos) is a semi-circular Volcanic Crater (half of it has been eroded by the sea) filled with Sea-water that has filtered through the black sand that seperates the lagoon from the sea.
The Green Lagoon (the colour is caused by algae living in the water) contrasting with a black sand beach and wierd looking rock formations make for quite a spectacular site.
The nearby village of the same name is worth checking out for its seafood restaurants.
Los Hervideros (literally the 'Boiling Waters') are a series of caves and blow holes which have been eroded into a former Lava flow.
As the waves crash into the caves, mountains of white surf are produced, giving the appearance of 'Boiling Waters'.
Here it is possible to walk around the cliffs and watch the breakers crash into the caves from one of the natural 'balconies'.