Lowveld scenic route info needed

Im planning to do a trip through the low veld between barberton area and pietersburg area. I am not familiar with the area at all so i need info. I know it is one of the pretty areas in SA with awesome biking roads. I'm properly going to stick mainly to tarr roads.  Is there any WD's that can give me tips on what the best Scenic route through the lowveld is and what to see there that is worthwhile. I think I will spend about 2 nights there in the area. Plse help? ???