Dropped down to 4 m, swam along the coral a bit before entering a swim-through cave. Inside looking up saw hundreds of fish and the surface shimmering above, washing across the clubbed branches of the rock. Swam down through a second cave and then swam along a paradise of coral. Saw two turtles and a barracuda hanging at the margin of the vis in the blue. Eventually came to a 'sandy road' - a large gap in the coral. Surfaced with Dave, Simon and Siobhan when we got to 50 bar. Perfect dive profile: spent the last half of the dive gradually climbing to 6 m.