The 2017 Expedition to Picos de Europa has a permit between 17th June and 30th July and will be caving for 4-5 of these weeks.

The Ario Caves Project 2017 – Who, What, Where, When? (3.3Mb)
The dream, opportunities, logistics, costs and contact details.
It’s all in the PDF document linked above…

If you think you should be part of the 2017 expedition, please get in touch with Steph and Mike.