Tanna Island, Vanuatu

Just out from the village is one of the 'Blue Holes'. It is circular and bigger in size than a football field. The limestone is jagged so wear reef shoes when exporing the thousands of smaller rockpools. You step off this limestone platform ( or are they ancient lava beds?) into the sparkling clear blue water which reaches depths of over 30m at high tide. We spent ages following the vertical walls of the pool where the best coral and colourful fishes were found. You could also move through narrow underwater 'chasms' that joined to other rock pools as you wound your way through and around some of the underwater 'bommies'.