In 1986 there was three main expeditions to the area. Tresviso 1986 by Lancaster University Speleological Society (LUSS) continued exploration in the Pico Moro and Minas de Mazarrasa areas. South Wales Caving Club (SWCC) undertook diving exploration in Cueva del Nacimiento, as part of the Agua 86 expeditions, and the Belgian Verbond van Vlaamse Speleologen group explored Sistema Sara.
Summary
- Dossers Delight leads checked out, still stops at -831m deep.
- Found Clockwork Pot and connected to Natacha (Pozo Castillo)
Members
| Name | Club | Nationality | Year | ExpedName |
|---|---|---|---|---|
| Colin Boothroyd | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| Daniel Davies | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| Dave Warrington | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| David Hetherington | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| Duncan Hetherington | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| Howard Jones | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| Howard McKee | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| John Wallwork | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| Mark Mortimer | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| Nick Airey | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| Paul Oldham | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| Rich Broughton | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| Steve Jones | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| Steve Toons | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| Tim Nichols | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
| Tony Hammes | Lancaster University Speleological Society | UK | 1986 | Tresviso 1986 |
Documents & Links
Agua 1986
..tight and sharp and particularly unconducive to bottle carrying..
Anon.
Abstract
Objectives
- Dive the Certain Death, Colin’s Climax (the Far Upstream Sump) and Wigan Pier sumps of Cueva del Nacimiento
- Re-examine leads at the ‘back-end’ of Cueva del Nacimiento
- Dive the Terminal Sump in Cueva de la Marniosa
- Prospect for new entrance in the Sobra Valley and the Sierra del a Corta
Summary
Cueva de la Marniosa
The Terminal Sump was passed after 35m to >1.5 km of stream passage and a second sump
Cueva del Nacimiento
The Certain Death sump, previously dived in 1985 for 120m, was extended down to -64m and 240m from base. At the limit of exploration an ascending shaft was encountered (ed. disputed, see later reports).
In the ‘back-end’ the main stream was pushed downstream for 300m to a 20m gour pool ramp above a sump (Far Downstream Sump).
The Far Upstream Sump was dived to 167m from base at a depth of -27m.
In the Hall of the Green Domino, above the Bloody Lake, a steep wall was scaled to a series of steep ramps and climbs, totaling over 200m and reaching +192m above the Bloody Lake. The area was dubbed the Teeth of Satan.
Just inside the Nacimiento entrance series the main upstream sump was dived for 45m to resurface in known stream passage.
The Road to Wigan Pier sump was passed after 18m, at -16m depth, to further stream passage. This was followed to another sump, Parting Friends)
Cueva del Rio Chico
In Chico, sump 2 was dived to -62m (ed. later dives reported line tied off at circa -37m).
Cowshead Cavern
A cheese cave in the Sobra Valley was explored for 250m to a sump. The sump was passed after 100m to further stream passage and Sump 2. Sump 2 was only 4m long, leading to >500m of passage and Sump 3.
Members
| Name | Club | Nationality | Year | ExpedName |
|---|---|---|---|---|
| Andrea Dyer | South Wales Caving Club | UK | 1986 | Agua 86 |
| Andrea Sawyer | South Wales Caving Club | UK | 1986 | Agua 86 |
| Clive Gardner | South Wales Caving Club | UK | 1986 | Agua 86 |
| Debbie Stevens | South Wales Caving Club | UK | 1986 | Agua 86 |
| Fran Hampton | South Wales Caving Club | UK | 1986 | Agua 86 |
| Ian Rolland | South Wales Caving Club | UK | 1986 | Agua 86 |
| Jane Blanchard | South Wales Caving Club | UK | 1986 | Agua 86 |
| Jo Ellis | South Wales Caving Club | UK | 1986 | Agua 86 |
| Julian Walker | South Wales Caving Club | UK | 1986 | Agua 86 |
| Mags Thomson | South Wales Caving Club | UK | 1986 | Agua 86 |
| Rob Parker | South Wales Caving Club | UK | 1986 | Agua 86 |
| Roddy McLauchlan | South Wales Caving Club | UK | 1986 | Agua 86 |
Documents & Links
Systema Sara 1986
Summary
- Exploration of Sara (discovery of the Belgian Connection / Rio Mancondiu)
Members
| Name | Club | Nationality | Year | ExpedName |
|---|---|---|---|---|
| Andre Sleurs | Verbond van Vlaamse Speleologen | BE | 1986 | Sara 86 |
| Frank De Clerck | Verbond van Vlaamse Speleologen | BE | 1986 | Sara 86 |
| Jan Masschelein | Verbond van Vlaamse Speleologen | BE | 1986 | Sara 86 |
| Jos Beyens | Verbond van Vlaamse Speleologen | BE | 1986 | Sara 86 |
| Koen Mandonx | Verbond van Vlaamse Speleologen | BE | 1986 | Sara 86 |
| Patrick Blommaert | Verbond van Vlaamse Speleologen | BE | 1986 | Sara 86 |
| Rik Kuenen | Verbond van Vlaamse Speleologen | BE | 1986 | Sara 86 |
| Wim Cuyvers | Verbond van Vlaamse Speleologen | BE | 1986 | Sara 86 |