Our boat is floating on a gentle swell a kilometre or so from the island of São Miguel. The water is an incredible blue, a blend of turquoise, azure and ultramarine reminiscent of a Hockney painting. Diving in feels like jumping into the sky.

Our boat is floating on a gentle swell a kilometre or so from the island of São Miguel. The water is an incredible blue, a blend of turquoise, azure and ultramarine reminiscent of a Hockney painting. Diving in feels like jumping into the sky.