tecnical diving

The Deep Scattering Layer

First noticed during the latter stages of the Second World War when hydro-graphic survey ships equipped with echo sounders showed a ‘phantom seabed’ appearing on the graphs, the Deep Scattering Layer (DSL) often appeared many hundreds of fathoms above that… Read More ›

Sky Divers

Five kilometres off-shore from Long Reef, on Sydney’s northern beaches, a handful of wrecks scuttled in 50-plus metres attract large numbers of recreational divers.  For two technical divers attempting one of the deeper wrecks, a carefully planned dive turned to… Read More ›