Khon Kaen is not the most touristic city in a North-Eastern region of Thailand called Isan that already is the least visited by foreign tourists.
Excursions ou activités en Thaïlande par destination
Tours & activities in Khon Kaen
This selection lists tours, excursions, guided tours, and activities that I have personally tested or were tested by people I trust, but also offers from agencies or websites recognized for their seriousness and quality.