1986

Summary

• Dossers Delight leads checked out, still stops at -831m deep.
• Found Clockwork Pot and connected to Natacha (Pozo Castillo)

Members

Documents & Links

• Tresviso ’86 (no specific report, but included as part of LUSS 4)
• LUSS 4 (BCRA archives 78mb version)
• Tresviso ’86 – Caves and Caving No 37 (Howard McKee & Tim Nichols, 1986)

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

Documents & Links

• Agua 86 – SWCC Newsletter 1986/1987
• Agua 86 – Caves and Caving No. 36 (Gavin Newman and Julian Walker, 1986)
• Agua ’86 – log extracts, SWCC Newsletter 104, 40th Anniversary

Systema Sara 1986

Summary

• Exploration of Sara (discovery of the Belgian Connection / Rio Mancondiu)

Members

Documents & Links

• Sistema Sara – Spelerpes ’87 (Jos Beyens)
• Sistema Sara – 2020 translation of the 1987 article (Jos Beyens, Phil Walker)