A volcano chose the restaurant and settled comfortably like a little kitty on a blanket into the arms of the chefs who now, pet it with grills and skewers. A radiating, hot pit that cooks food. El Diablo is the Shrek of the Volcano land. It looks menacing but is actually cute as a button.
Prior to something like this happened to the volcano, it still was very much like a stove. Some volcanoes have stoveness thrust upon them. So sardines and wine were served to the visitors. But in 1970, Cesar Manrique created a restaurant around it naming it El Diablo. Yes, maybe one of those really unusual cases where you build a restaurant because you have a stove.
Now a restaurant cannot really make use of all that raw, amazing volcano heat as is, it needs taming. Only, to install a grill, they needed to have foundations and it was really impossible to do that. So, architects got busy and made a nine layer, basalt volcanic rock structure that now supports the iron cast grill that saw many a delicacy cook away to volcanic perfection, at 450-500 degrees of geothermal heat.
You can have a tour of the volcanic grill, along with a delicious three-course meal, that’s cooked on the dear darling grill while soaking in the surrounding breathtaking view. It is desolated and beautiful.
According to curioushalt.com