We had a wonderful day with Vong, full of interesting information, lovely nature, lots of historical and religious facts. He was very flexible when we changed the itinerary in accord with our wishes and abilities. He replied fast via email making our trip planning easy. Vong is very passionate with our frequent photo stops and slow movement, spent with us more time than was planned. All we wanted to see we did see. His English is clear and easy to follow. Many thanks to you for the lovely moments, Vong