willy boy if you are driving around try going towards nong bua lamphu towards Loei you come across "Erawan cave" the caves are set high up so its a long climb up by steps or rope if you prefer , then on to loei,do the whole loopdown to lomsak,at the road junction theres a police box with a row of resturants great crispy duck there !!
then head towards King Kong on highway 12, through Nam Nao national park,there is also Phu Pha Man national park and Phu Wiang national park either go back via king kong sorry meant khon kean or the road towards Si chompoo back to Nong Bua Lamphu then to Udon.
Head in the other direction to sakon nakon and there are 3 lake reservoirs and more Lam pao dam and Nam wan dam and more national parks. Hire a car the routes are simple and driving is a breeze stop where you want see what you want but buy a good up to date road map. i recommend Michelin book of the road Tourist and motoring atlas.
Enjoy Willy Boy .