By Piers Boileau-Goad
25th August 2022
Introduction
Links
Dive Report
James, my buddy however had other plans due to a leaky glove so we both ascended, made our way over to the boat who suspected something was wrong. He jumped onboard to sort his problem while I was told to wait by the shot unless I also had a problem, thus, over to the shot I finned. Looking down, the visibility was looking really inviting, from the surface at least it seemed like a good 10-15m.
As we descended the light started to fade and the darkness encroached further. Closer and closer we came to a wreck I have been trying to dive for a year or so now. From roughly 20m I could feel a huge black shadow before me. So when she finally came into view my heart leapt, almost from my chest. It didn’t take long to get to the wreck as my descent speed was 17.3m per minute. The very first vestiges of the vessel that I saw were a straight line, then a curve which morphed into a weather tight door on the ship’s starboard side running along a little open deck area (bridge wing), forward of this was a window, now covered in sponges and other ‘life forms’. Heading past the wing we made our way down to the deepest part of our dive where my buddy recorded 60.3m on the stony, gravel bottom. Lights were most definitely needed from now on as with the wreck towering over us, natural light was essentially blocked out. It felt like a night dive at this point. Me being me, I put my light onto a narrow focus and tried to suggest a light sabre duel with my buddy which fortunately he didn’t quite understand.
As we swam further towards the stern we saw ladders (staircases) and catwalks that would have been used by the crew on their daily duties checking fire hoses, life boats, dampers and a myriad of other safety items from their planned maintenance schedules.
Lessons Learnt
- Dry gloves are not always dry.
- While my ascent (the grey line in the graph) is satisfactory, it wasn’t perfect so improvement is needed there.
- The planned bottom time (30 minutes) would have resulted in a 92 minute run time. Had we surfaced directly from our last deco stop at 6 metres, run time would have been 76 minute. The additional 7 minutes on the bottom required 16 minutes more decompression.
- Always carry my battery! Heating while not necessary at 19 degrees is a good option to have even if its just for a few minutes here and there.
- I had two 1Kg weights in my thigh pockets mostly out of habit, these hindered me slightly from holding a perfectly horizontal position in the water so these should be moved onto the belt although this has never been a problem when using Nitrox 32% as my bailout.
- Looking at my PPO2 charts (red and orange line in the big graph below) my PPO2 is pretty good with ascents obvious when the PPO2 drops. That said, I had more than minimum loop volume at one time on the 6 metre stop, this means extra buoyancy for a “lower” PPO2 so this also needs to be monitored more closely.
Statistics
- Site: Ice Prince
- Boat: SkinDeep
- Depth: 60.3m
- Run time: 81 minutes.
- Water Temperature at depth: 18 degrees.
- Gasses (O2/Helium):
– Dilluent: 13/68
– Deep Bailout: 18/46
– Shallow Bailout: 50/20
– O2 Consumed: 59 bar – 118 litres.
– Dilluent consumed: 58 bar – 116 litres.