After five hours we arrived in a small village in the middle of nowhere and thankfully a group of three students who were planning to go to the National Park aswell organised for us all to get a sawngthaew the last 6km.
The park staff were very accommodating and made sure we were comfortable in our bungalow, even taxiing us to a local store to pick up some food. We think they weren't used to seeing farang (white people) in this neck of the woods. It's normally Thai families who stay in the park for the holiday weekends. They were very nice anyway and were very interested in the photos Greg took of the impressive Khlong Lan waterfall.