The children asked so many questions at the farm that shooting lasted over 20 minutes, delaying the cows' regular routine.

"When the cow enclosure was opened, the cows didn't come out as slowly as usual but rather trotted to their feeding troughs. That moment reminded the children of their most joyous experience away from school," says Si.

In accordance with the Chinese saying, "it's better to travel 10,000 miles than to read 10,000 books", the journeys helped the children to become more independent, enhance their fitness and improve their problem-solving abilities.

"It's an unusual vacation," Si says.

"We hope these journeys become a lifelong treasure for these children. And we also hope that the young audiences who 'travel' with them through the show learn more about the country."