BEST THINGS TO DO IN THUNG NHAM
1. Thung Nham Bird Watching Area
As you enter the park, the first thing you will notice is the peaceful sound of chirping birds, which signals the start of a true birdwatcher's paradise.

Thung Nham Bird Park ecotourism is quite impressive, as the park is home to over 45 species of birds, including storks, egrets, herons, and kingfishers. The bird watching area in the park provides an ideal spot to observe the birds in their natural habitat. Visitors can take a boat tour around the park's lakes and wetlands, allowing them to get up close and personal with the feathered residents.
2. But Cave
But Cave is one of the highlights of Thung Nham Bird Park. The cave is home to an impressive stalactite system and boasts a unique ecosystem, with bats, swifts, and other wildlife calling it home.

3. Vai Gioi Cave
Vai Gioi Cave is one of the most awe-inspiring natural wonders in Thung Nham Bird Park. Located deep within the heart of the park, this unique cave offers visitors an unforgettable experience that showcases the power and beauty of nature.
One of the most striking features of Vai Gioi Cave is the stunning natural light display that illuminates the caverns, creating an otherworldly atmosphere that is sure to leave you in awe.

4. The ancient banyan tree
The ancient banyan tree in Thung Nham Bird Park is a living symbol of the park's rich history and natural beauty. This stunning tree is over 1,000 years old and has grown to a massive size, with its sprawling roots and branches creating a natural canopy that provides shade and shelter to visitors.
Visitors can take a leisurely stroll around the tree, taking in the sights and sounds of the surrounding park. The tree is also a popular spot for photographers, who come from all over to capture its natural beauty and majestic presence.

5. Explore other famous destinations in Ninh Binh 
Linh Coc Hai Nham 
A wonderful place for taking a leisurely boat ride that takes you to explore the limestone cave, a perfect place for those who like traveling off the tourist trail. There are a few people who know the places. It locates Bich Dong pagoda and Thung Nham Eco-tourism site.
It takes about over 1 hour to explore two limestones cave. There is an option with a long journey is to travel from Linh Coc Hai Nham to Galaxy grotto area and back, which takes about 2.5 hours. 
The entrance fee is about 60k (Approximately $3 per person). There is a suggestion with extra tips for the boat rower, about $1 USD per person. 
Bich Dong pagoda
Bich Dong Pagoda is one of the well-known tourist attractions in Ninh Binh and only 2 miles away from Tam Coc. Bich Dong is a common site to visit for both day trips and overnight trips to Ninh Binh
To conquer the peak of the pagoda, you need to hike over 150 steep steps. The view of the top is truly amazing with limestone mountains, water, green rice paddy field.
My advice is to get there in the morning or afternoon to avoid the big crowd so you can take lots of awesome photos and enjoy your hiking pace. On the other hand, make sure you turn on the flashlight with your phone camera because you need to go through a dark cave to reach the top.
Tam Coc
It is a must-do for Ninh Binh, which offer an amazing boat ride with an awesome view of the limestone mountains, rice field and more. I recommend taking the boat ride in May so you are able to see the yellow paddy field when it comes to harvest season. 
The boat ride takes around 1.5 to 2 hours, which takes you to explore 3 caves. There is sometimes due to the tidal because of heavy rain, you only see one cave instead of three caves. Most travelers prefer staying in the Tam Coc area because there is a wonderful rural area to check out with many things to do.