I hadn't heard of this place either, and there is a good reason for that - it is in the middle of nowhere.
Nestled in the hills west of Pranburi/Sam Roi Yod is a hidden gem - a river-side campsite called Pa Mak [ลานกางเต็นท์บ้านป่าหมาก] with an authentic little coffee shop. I decided to visit on my way south from Kanchanaburi to meet family and friends that were driving up from the south for an overnight stay there. Riding south, I stopped at a gas station on the bypass road near the Hua Hin junction to fire up the GPS and get my bearings.
Not sure I believed what it was telling me - 70kms from my current location and two hours to get there.

I took the road towards Pala-U for about 12km to Ban Nong Plup and turned left onto 2052 which heads towards the Monsoon Valley vineyards. Once past the vineyards, this road is spectacular, you could almost be in Switzerland riding through the valleys - very scenic. It starts to get gnarly once you cross the Pranburi river in the hinterlands - then the road deteriorates further until it is purely offroad.
The final 15km or so to the campsite is all off-road and very slow going - I know where the 'two hours' came from now, it took exactly that on two wheels not designed for off roading! I'd been on the bike for five hours since leaving Kan that morning and was glad to see the tents and campsite already set up as the family had arrived early.
(Apologies for photo quality, they were shot on an old mobile phone!)
More to follow ...