Gasmic Gorge is Avalanches little brother, lying closer inshore and is part of the “Avalanche” reef area. It is also an advanced diver’s only reef, with a maximum depth of 27 metres.
The site consists of a huge gorge about 4 metres wide and 30 metres long and is well disguised as it drops off the surrounding surface which is rocky with “not so high” rock mounds and gullies.
The bottom of the gorge consists of sand and crushed coral shale and has big ripples about 30cm high caused by the flow of water through this tunnel-like gorge. The walls on either side of the gorge are sheer and rise to about 18 metres below surface and are covered with hard and soft corals.
On the South wall is a medium sized cave that is usually full of fish and occasionally a horse fish hangs out there. Large Raggies have been seen in the gorge as well. The reef surrounding the gorge is very impressive with a number of gullies and walls covered in good growth. Reef fish are also abundant on this reef and it seems to be a visiting place for the occasional inquisitive seal.