M2 Super Action — October 22nd
We said we'd go back, and that we'd survey, so we did! We measured 245m of survey data, adding an extra hundred metres to the known depth of M2 and bringing the closest approach with Vrtnarija to 4m (nb: 1.4km loop, estimated ~30m error), along an easy mud-floored dig taking a huge draught.
Post — Expo Summary
2011 was another great year deep within Tolminski Migovec. The weather was horrendous — we even had snow! But the cave kept on going. We found over 2.2km of new passage all below -500m in depth, and took the cave to a new deepest point of -888m. All of the exploration took place during underground-camping trips based at X-Ray (Vrtnarija, -550m), with the keenest of expeditioneers managing a total of around seven nights underground during the four week expedition.
We presented our exploits at the BCRA 'Hidden Earth' Caving conference in Monmouth on 25th September 2011. The slides are available, either as a PDF (33MB) or the original ODP (26MB), or online via Scribd.