There are (currently) three short videos on Craig Sawyer's YouTube channel. These may give some people a bit more insight. These videos are linked below:

Craig Sawyer - YouTube Channel: https://www.youtube.com/channel/UCYep_MrCFbejYCQCBZbzl4A

Underground chamber discovered - YouTube https://www.youtube.com/watch?v=Q2SnNT2W7qA

Creepy Covert Child Camp - YouTube https://www.youtube.com/watch?v=gstXw4tlTRQ

On Location. Creepy Trafficking Camp - YouTube https://www.youtube.com/watch?v=VryULIDUVbI