I would personally recommend this trip to Ninh Binh: Hoa Lu-Trang An-Mua Cave. Mr. Binh, the tour guide and coordinator, is very effective and accommodating starting pre-trip preparation up to the end of the tour. He really knows his craft and speaks English clearly. We appreciate the trivias and narration of Vietnamese history. While there's a slight change in the itinerary of this trip due to unavailability of bicycles for the first place to visit, it still went very well. The bamboo boat lake ride is remarkable and something to look forward too. It is best to book this trip during this period, as the weather is fair. My family and I enjoyed and are satisfied with this trip. Thank you.