In 2012 an international expedition led by Joerg Dreybrodt saw one of its members on the tracks left by the 2005 expedition. In that occasion were investigated different areas of the central regions of Shan. The return to the village of Pinh-ton to resume relations with the locals was an important part of the expedition and it was a pleasant surprise to see how much were impressed the memories of the Italian explorers after 7 years.

Only in the 2013 January expedition, organized by the Myanmar Caves Documentation project, the resurgence of Namun Spring was partially explored and topographed for a total development of about a kilometer.