Expeditions done by SPE (Portuguese Speleological Society)

The hydrological year of 2008-09 has overlapped with SPE’s 60th birthday with special focus on the underwater exploration of the cave, eighteen years after the 1991 dives.

  • 350 meters of new underwater galleries mapped
  • 4 service pumps
  • 200 meters of hose installed
  • 700 meter of electrical cables
  • 160 pumping hours
  • 7 dives
  • 730 minutes of underwater exploration
  • 47 meters of maximum depth
  • 207 meters new depth for the system

 

More information at:
http://www.spe.pt/espeleologia/Expedicoes-de-Espeleomergulho/Trabalhos-no-Sistema-Moinhos-Velhos-Pena-Contenda-2009.html