We enjoy spelunking and Vang Vieng area is full of the caves. Prior to the arrival we contacted Vone from VLT and told him that we would like to explore some caves mor in depth then just half an hour. He offered us Tham Hoi.
When we arrived to VV and confirmed the caving expedition, we have learned that this is not something that has ever been organized by any agency, and Vone is pioneering this trip to see if there may be a more demand in future. He organized two local guides for us who have been in part of the cave, supplied them with a rope and candles to mark the rest of the way so that we do not get lost. Clearly he wanted to make this trip happen for us, yet was aware that there may be some potential dangers and prepared for them.
We had absolutely wonderful time exploring the cave for 5 hours.
For the next day we organized a kayaking/ visit to couple other caves and Vone assigned us a guide who was very patiently waiting in front of two caves while we explored them independently.
Highly recommend this agency as it did fulfill the promise without any glitch.