In Part 2 of this project, two men dig deep into the ground to build a mini swimming pool inside their secret underground house. Using only simple tools and teamwork, they turn soil and clay into a ...

In just 27 days, two men transform a patch of jungle into a secret mud house with a big swimming pool. Using only simple tools, they dig, build, and decorate the structure from the ground up. The ...

From smart swimming goggles to waterproof smartwatches that sit on your wrist, these are our favorites tested and rated.