Hidden Earth 2023
Recent Exploration in Northern Thailand
45 minute Lecture|Andy Goddard and Rob Thomas

Abstract
In 2020 and 2023 two UK/Thai expeditions set out to explore the mountainous regions of Doi Ang Khang, bordering Myanmar in the north west, and in 2023, the Doi Phu Kha National Park close to the Laos border.
A key objective of the 2023 expedition was to dive a number of sumps including the upstream sump in Tham Luang Nang Non, two sumps at the bottom of the deepest cave in Thailand, Tham Pha Phueng, and a resurgence cave in Khon San in central Thailand.
This talk will give an overview of the two expeditions, mainly focussing on the non-diving exploration; including caving in a royal botanical garden, coffin caves, angry mermaids, and what’s at the end of a 30m handmade rope ladder.
More from 2023
Workshop|Paul Taylor
Video salon showcase. Viewing of submitted films, comments and feedback session.
Lecture|Chris Scaife
Matienzo in the 2020s
Lecture|Lydia De Brett
Evidence of a Past Acid-Metal Mine Pollution Event Found within a Macrotidal Estuary on Anglesey
Lecture|Jonathan Lester
Unveiling the Hidden Depths: Subterranean Photogrammetry and 3D Scanning for Cave Surveying, Rescue, and Preservation
Lecture|Fleur Loveridge
5 km of new cave in the dales: an a-mazing search for a missing master cave
Lecture|Jonathan Lester
Advancing Archaeological Speleothem Research & Its Future Role In Cave Digs
Lecture|Jo White
Snottites, Slime and Oozes – Derbyshire Mine Biofilms
Lecture|Fleur Loveridge
The Ario Reality and other Draughting Rifts
Lecture|Rostam Namaghi
Thoughts on the future of 2D Cave Surveying
Lecture|Frank Pearson
Northern Round-Up