Rebreathers in the Shaft

 Cave diving, Mt Gambier, rEvo  No Responses »
Feb 102015
 
Rebreathers in the Shaft

The Shaft is a beautiful dive, and an impossible cave to photograph. After I finally achieved that classic shot of the sunbeam down the middle of the hole, rockpile lit up and diver frozen up in the shallows, I declared I never needed to take photographs in there again. And yet, two summers on I was headed over to Gambier with my parents for a fun family weekend with a Shaft booking in place. A couple of weeks beforehand Kelvyn was chatting to the landowners about the long-discussed intent of opening the site up to rebreathers. While there have been “special interest” dives in the Shaft on rebreathers previously regular diving has all been run on open circuit. Letting a [read more…]

Backlit bubbles in Tank Cave

 Cave diving, Mt Gambier, rEvo  No Responses »
Feb 042015
 
Backlit bubbles in Tank Cave

After our very pleasant jaunt through DD31, Moo and I headed over to Tank Cave for the rest of the Australia Day weekend. It was good to see a whole bunch of freshly minted Advanced Cave divers working through their first group dives with enthusiasm. Tim and I left the gold lines to them and headed down the back of the cave. I was on the rEvo but Tim was back on open circuit and carrying a couple of large stages in addition to his sidemounts. The rEvo makes a big difference to photography in Tank, as once I’m in the right spot I can take more than a couple of different angles without worrying about my bubbles disturbing silt [read more…]

Sunbeams in Sinkholes

 Cave diving, Mt Gambier  No Responses »
Nov 192014
 
Sunbeams in Sinkholes

About the dive Kilsby’s is gorgeous…I’ve been there many, many times and it’s usually great. Then on some occasions it moves from being great to being truly awesome. These photos were taken on one of those days. On this particular weekend the whole cave diving world was booked in to dive Tank Cave. Myself and my parents had three awesome dives at Pics, Pines and Kilsby’s without seeing another soul. The water in both the Cathedral in Pics and in the main cavern of Pines was crystal clear. And then there was Kilsby’s. In early November I wasn’t sure if we’d be seeing much sunlight in the water. But by 9.45am or so the sunlight was just starting to creep off [read more…]

Sunday afternoon in Pines

 Cave diving, Mt Gambier  No Responses »
Oct 282014
 
Sunday afternoon in Pines

Weekend before last was the CDAA AGM and associated talks and dinner in Mt Gambier. After giving a talk on my evolution from cave diving to sump diving over the last ten years and listening a bunch of excellent presentations from the other speakers, it was great to get in the water on Sunday. Steve and I headed to Pines, a site I haven’t visited much since finishing my Tank pre-requisite dives some years ago. My Pines dives in the intervening time have mostly been with cave-rated buddies or for gear checkouts and involved photos of sunlight in the main cavern. So it was nice to be back, on the rebreather and headed for the Crazy Czech’s Room. Steve was [read more…]

The Cathedral in Piccaninnie Ponds

 Cave diving, Mt Gambier  1 Response »
Jun 032014
 
The Cathedral in Piccaninnie Ponds

About the site Pics is a gorgeous dive. The site earned a RAMSAR listing in 2012 and early last year works were carried out to slightly raise the water level and flood an additional 25ha of wetlands. I dived there earlier in the year with a film crew working on a shoot for the History Channel. We had a brilliant day of sunshine and very clear water, and I was keen to get back to shoot some stills for myself. About the dive Diving here is a very vertical experience. The cave is a narrow rift from the surface down to 40m. In places it’s cut away underneath and on a normal scuba dive the exhaled bubbles run up the [read more…]

Rebreathers in Tank Cave

 Cave diving  No Responses »
Jan 132014
 
Rebreathers in Tank Cave

About the cave Tank Cave is one of my favourite places to be. Miles of tunnel, clear water, great photo opportunities, stairs to the water…and shallow tunnels, narrow spots and lots of small depth changes. Those last three points mean Tank is not generally regarded as a great cave for rebreathers. The counterlung acts as a third source of buoyancy in addition to the wing and the drysuit. As well as managing the oxygen levels in the rebreather, the diver also has to manage the gas volume. So every up and every down means either adding or venting in at least two locations. On an open circuit dive I manage microbuoyancy with my breath. Need to go up slightly? Breath [read more…]

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