Got a text off Dad. They are now in Kanchanaburi. No Wifi unfortunately so we are limited to 160 characters! They've managed to get themselves a "floating" bungalow in the Riverside Guest House area. I'm wondering what the difference between a floating bungalow and a boat is! Apparently Dad has been for a swim in the river ... not sure if that's the only way to get to the bungalow or if he took a wrong turning!
They've managed to do two museums (probably Thailand-Burma Railway Museum and JEATH War Museum) and the Bridge over the river Kwai. They are planning on having two nights Kanchanaburi as there appears quite a bit to do and see according to Let's Go.