The “sea of clouds” is a natural phenomenon caused by the Trade Winds. They push the clouds against the summits, making the humidity condense in mid-elevation zones in the north and northeast. Winds at higher levels, characterised by their warmth and dryness, prevent the clouds ascending, so that once you are above 1,800 metres you can see them below you. Sometimes the sea of clouds spills over onto the west side of the island, causing an equally impressive effect: the clouds gradually disintegrate as they flow down the western slopes, forming what looks like a cascade. Something not to miss!