We had the best time black water rafting and exploring the caves with Rap Raft nRock! At first we were a little confused at the which company to go with, but in the end we decided to go with RRR because they provide a bit of everything - Assailing, rafting, exploring, glow worms - and also because they were the most affordable. I must say, that although we didn't try the other companies, this was the best experience I could imagine and for the best price.
We got very lucky because of off-season and had our own personal guide for just the two of us! This gave us much more flexibility and time to explore the caves. The whole way through was super fun. I thought I would be more scared of the assailing but it turned out to be super fun and our guide made me feel super safe. Once in the cave, we first rafted down the water, with our head lights off enjoying the view of the glow worms above - amazing! Then we challenged ourselves and went through a few crevices and channels within the cave. Because it was just the three of us, we moved fast and had time to enter deep into different cave channels. We enjoyed some hot tang and chocolate inside ;)
Overall a great challenge, loads of fun and a great time.