Preparation
They needed a source of light when they go down the hatch. This was why John and the team added an electrical line on the site. On top of that, they installed a black pipe for fresh air. They were getting close to the end of the reinforcement. After fifty years, this underground cavern mystery was getting solved!

Preparation
Ready To Go
After they finished reinforcing the entrance, they could finally go in. At last, they agreed that things were secured enough for them to go down. This was the moment that they have all been waiting for. Of course, no one was more excited than John was!

Ready To Go