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Dive #404 · Sunday, 21 April 2019
Émergence du Ressel
Marcilhac-sur-Célé, Lot The Quercy causses
- Day 1 of 6 · Quercy causses Apr 2019 →
- 2nd dive of the day(also #403 Émergence du Ressel)
- deeper than 80 % of all dives
- Max depth
- 24.1 m
- Avg depth
- 10.9 m
- Bottom time
- 59 min
- SAC
- 19.5 l/min24 L · 230→130 bar
- Visibility
- 10-20
Kit
- Gas
- Air · measured 22.6 %
- Cylinder
- D12
- Pressure
- 230 → 130 bar
- Mode
- Open circuit
- Course / purpose
- C4
Where
Émergence du Ressel
The most-dived cave in the log outside Mexico, and one of the great exploration caves of Europe — a window into a flooded network draining 330 km² of the Causse de Gramat.
Dive 12 of 25 here · first 2018 · last Sept 2024
With
On the map
Ressel survey
No route marked
- Entrance
- T
- End of line
- Air
- Shoreline
- Depth
- Along the line
Plan: left at the 1st T, at the 2nd T left for a short look. 50 bar for penetration. #2. SAC 19 L/min. On this dive I was number 2 and could watch how Erik & Bas did things. Erik kept up a good pace. I did not really recognise the shallow passage. Just after the jump the tunnel suddenly dropped to 17 m, something I had not realised on my previous dive. From this side the 2nd T was clearly visible. Just past it was the crack down to 30 metres; I recognised it well and it brought a déjà vu with an unpleasant aftertaste. Then a lap at 5 m to calm down again. On the way back saw a dead fish close to the jump. With slightly more efficient finning I can get calmer still. Cool dive. Team: Erik "Nice Trench!"; Saskia "Both unconsciously working on finning technique =)"