Pick-up at your hotel at 8:00 am, then transfer in about 110 km on a good road by mini-van to Ninh Binh (~2 hours). We start cycling on the countryside road, onto Hoa Lu - an ancient citadel, maybe with a stop for its history in the 10th century. Then we continue our riding through the limestone peaks to Tam Coc, passing rice paddies and through the rural villages.
Here we are in Tam Coc and lunch is served in the local restaurant that has view over the boat pier, great chance for photos here. Followed by a short transfer on van, we continue our ride exploring more of Ninh Binh, along the farm for about 2 hours cycling. Cuc Phuong national park is our destination, we load the bike back on the van and transfer to the park center for the night. Dinner and overnight in a simple bungalow inside the park.

Morning exercise with cycling up hills further into the jungles, this is harder than yesterday but it's worth being in the fresh nature with sounds of birds, maybe with a short walk here to learn more about plants and animals before we drive back to the gate for visiting the Primates Rescue center.
Leave the Rescue center by van for Van Long, it'll be time for lunch, then we will take the local bamboo boats visiting (1,5 hours) along this fascinating Nature Reserve in swampland - Van Long, with limestone peaks, caves and there maybe chances to see different kinds of birds and the Delacur langur. Transfer back to Hanoi, tour ends at your hotel by around 6 pm.