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Dive #525 · Friday, 24 September 2021 · 11:20–12:55
Source de Combe Nègre
Lanzac, Lot The Quercy causses
- Day 5 of 6 · Quercy causses Sep 2021 →
- longer than 79 % of all dives
- colder than 65 % of all dives
- Profile
- Max depth
- 8.4 m
- Avg depth
- 2.4 m
- Bottom time
- 68 min
- Water
- 13 °C
Kit
- Gas
- Nitrox 32
- Mode
- Open circuit
Where
Source de Combe Nègre
An independent resurgence into the Dordogne near Souillac — narrow passages, short siphons, and two namesakes nearby that have caught out more than one map.
Dive 2 of 2 here · first 2021 · last Sept 2021
With
On the map
Combe Nègre sumps
No route marked
- Entrance
- T
- Restriction
- End of line
- Air
- Unsurveyed
- Depth
- Along the line
Profile
ZHL-16C GF · GF 50/85 · Perdix #75, #76
- Avg depth
- 2.4 m
- Deepest at
- 14:10
- Descent
- 7.2 m/min
- fastest
- Ascent
- 6.4 m/min
- fastest
- Samples
- 527
- every 7.6 s
C57; max depth on paper None m, dive computer 8.4 m; duration on paper None min, dive computer 68 min; dive computer split this dive into records [75, 76] (brief surfacing); durations added together