Enter the water from the boat . Descent to 5 m. On that depth is the entrance of the chimney. Descen down to 26 and 33 m. Eexit out of the chimney  into the deep blue sea - with luck you can see tunas, jacks, sharks) Depending onl current we can go to the left or right along  the wall. Safety-stop in 5 m

DIVING PROFILE at BLUE HOLE (EXAMPLE)