An islander serves tourists with homemade chak-chak (a popular Tatar sweet) for free. [Photo by Xu Lin/China Daily]

To delve into the ancient history and diverse culture of Tartarstan, the best way is to hop on a cruise from Kazan and take a two-day voyage along the Volga River.

It's relaxing, especially for the elderly and children. Tourists don't have to pack and unpack or carry heavy luggage, and can enjoy different activities on board such as live music, dancing and handicraft workshops.

A Russian woman teaches you how to make a doll without stitching. The secret is to use a length of thread to tie a knot to make a round shape out of a cloth filled with cotton. She is clever with her hands and makes different kinds of dolls.

In the early morning, you can watch sunrise through the window, lying in bed. If it's raining, you may see a gorgeous rainbow above the river.

The first destination is Bolgar Historical and Archaeological Complex, which became a UNESCO World Heritage Site in 2014.

There, a couple dressed in a traditional costume are waiting at the port to serve tourists with homemade chak-chak (a popular Tatar sweet) for free.

At the Museum of Bolgar Civilization you get a preview of the medieval city of Bolgar and the history of Tartarstan in the Middle Ages.

The ancient city was settled by Volga-Bolgars between the 7th and the 15th centuries.

During the 13th century, it was the first capital of the Golden Horde.

As the Golden Horde started to disintegrate in the early 15th century, the Khanate of Kazan was established, with Kazan as its capital.