On 1st May Joe Eagan and Paul 'Beardy' Swire helped put me in the water for a push dive in Roaring Hole after Jason Mallinsons last dive. Cylinders were insitu but my rebreather, regs, drysuit and undersuit all needed to go in.

Kitting up with the chestmount rebreather took at lot longer than usual but I also wanted to make sure everything was just right before I dived. Treading water at the bottom of the rope I clipped each of the cylinders on before attaching the rebreather and diving off. Going in it took me about 8minutes to reach the head of the rift before the cave descends. From here I swan on between 33-31m till I picked up Jason's line reel and started laying line. The visibility was better for me – around 2m which made a diving much easier however by following one wall into an alcove I was able to turn around on myself and lay 3m of line parallel to the incoming line before I reaslised my mistake.

Once rectified the passage continued large but after only a short distance I reached a section where the cave appeared to pinch in. Dropping the reel off I swam back up the passage for the last 10m looking for what I'd missed but findin nothing. Again I went back to the line and tried following the right hand wall and amazingly swam out into open passage and up a cobble slope to 25m. From here the passage dropped back down and much of my line was at 28-27m depth. In total I laid 90m of new line and ended up spending 2hours in the dive - with something like 18mins of deco. My chest mounted rebreather performed excellently and I was very pleased with the result.

Mike Bottomley then appeared to give me a hand out of the water - which was greatly appreciated!