Saki Blue Hole
Fig. 109: Diving in the Saki Blue hole on Espiritu Santo. The freshwater of this source here is filtered through porous stones. That's just a small hole here where my camera fitted in. Espiritu Santo, Vanuatu. Nikon D200; Δt=1/60 s; f=10.5 mm; f/2.8; ISO 100; 27 July 2010 01:07:29