One of the last days, when walking back from a market to the hotel (google maps doesn't let me walk by the coastline...) we saw this bar. It was the first time we saw Kasteelbier in Tenerife (Leffe is more common).
When ordering Kasteel...they had none, so we were stuck with Leffe ;-)
A bald Italian guy said they would deliver Kasteel tomorrow... but they said the same thing yesterday. He called it "Isla de mañana" (The island of tomorrow).
Anyway, good bar, good drink, good talk, nice atmosphere (google maps location)!