Yonaguni — dove 40m down and came back asking questions I still can't answer

Ok so I've been certified since 2019 and done maybe 60 dives. Nothing prepared me for Yonaguni Monument. It's off the southwestern tip of Ryukyu island chain, discovered by a dive instructor named Kihachiro Aratake in 1986 kind of by accident. What you see down there: right-angle cuts, terraced plat……