The 2018 summer expedition updates are complete. http://www.matienzocaves.org.uk/latest-website-updates.htm
They include a new version of the Matienzo Caves Project QGIS map. http://www.matienzocaves.org.uk/MCP-QGIS/index.htm
As well as the usual contours, cave lines, entrances, etc., this version shows the position of more than 40 panoramas taken by drone. One click over the centre then opens up each panorama for viewing. In addition, lines on the map show the flight paths for aerial videos, viewed through YouTube. There are links to view the flight paths in Google Earth. The purpose of these videos and photos is to provide another tool for finding possible new cave entrances.
The aerial panoramas and videos can also be viewed through this page on the web site. http://www.matienzocaves.org.uk/AerialPhotos/index.htm