Two young people from Cambodia abandoned modern technology and showed how primitive tools can be used to create wonderful things. Building a swimming pool is not an easy job, which is expected to take weeks to complete. But without any modern machines at all, the two young men were able to carry out the project in an unimaginable way.

Using only primitive tools, the two creative friends built a complete swimming pool around an underground bunker within two weeks. The two young men carried videos for their wonderful achievement. The sections are intended to show how primitive survival tools can be used to construct structures that are not believed to be possible. "We're publishing videos about building things in the wild, so others can learn, too," they wrote on their YouTube channel, which attracts more than 2.5 million subscribers. Through one of the most popular videos, they show how to create a swimming pool around an underground bunker.

They begin digging a large hole in the ground, where they can create a secret bunker. Around a bamboo structure, he put up solid plates using mud collected from a local river, mixed with sand. The panels were reinforced after being burned to the fire, creating an ideal material for pool water booking. The two men then set up a small walkway on a trench-shaped swimming pool. It has actually been using bamboo sticks.

Then came the construction of a stone wall around the pond, and an entrance to the pool. After the finishing touches, the swimming pool was completed and the two enjoyed a proper dive. The video was released last June, with more than 90 million hits. The channel, called "The Primitive Survival Tool," re-released the video just three days ago, and received more than 100,000 views. Other structures established by the two friends include a Roman temple, an underground hideout and a traditional house.

- Using tools

Primitive, just, done

The creative friends

Build a swimming pool

Full about cache

Underground, in

Within two weeks.