I went to Tenerife in 1973. I was on a ship that called into Santa Cruz de Tenerife and it was raining. In the afternoon we went on a bus tour over the mountains to Puerto de la Cruz. It was hot and sunny there. I remember as the road rose out of Santa Cruz seeing slums and poverty. It seems to have all changed. Spain, of course was a lot poorer generally in those days. However in my hunt for somewhere to draw, I found that Tenerife seems to be solid apartments or town houses. Probably holiday apartments, or occupied all year round by English people. This is 4 Calle de la Cruz de Almáciga (see it on Google Street View). It is along the coast road west of Puerto de la Cruz.
Watercolour pencil of Fabriano Cold Press.