Our first proper caving day, we headed north east to Tham Yai Nam Nao Cave in Nam Nao National Park together with Martin and Phil. This is a multi-entrance, wild show cave and approximately 10,105m long. The heat and humidity of the cave, forced us to keep a steady pace and we headed to the “Sump Bypass”, a climb over a crawl which often fills with carbon dioxide and dependent on the season, becomes flooded with water. Once at the Bypass, Mike drilled and placed three spits so a ladder could be rigged up the climb and a rope down the other side. An electron ladder was left in situ for future trips should the Sump Bypass be impassable.
We headed for the stream and wandered up a couple of hundred metres taking photographs, before retreating to go for some noodles (Pad Zeou).
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