Chachoensao, is a large country town, not a tourist town - you will definetely need transport to get around, so tuk tuk's , taxis or a car is a must
In the city of Chachoengsao province, travelling by two row seat bus start from early in the morning to 6pm-7pm approximately.
the area close to the river bank is beautiful. The city is also have the old popular temple "Sothorn Temple" (Wat Sothorn Wararam) and old local markets.
Nice temples, a several old markets and floating markets. A small city which you could spend one day trips or take a few nights near Bangprakong river.