Amazing. There were 5 of us, 2 from London who spoke a little Spanish and a family of 3 from Madrid who spoke some English. The tour itself was brilliant. Basil, our guide, took us all around the island, telling us lots about the island, life on the island, and the geology of the area. His knowledge is extensive, and he went out of his way to talk and answer any question, switching between Spanish and English in the same breath. My friend and i really enjoyed ourselves and made some friends along the way. Worth every penny.