Fuxion Lake (no replies)

Just saw a short piece on TV regarding The sunken pyramids in Fuxion Lake in China. I know Graham has been on the front line of sunken monument research so I was wondering if anyone here had done any research or is familiar with work that has been done, i.e. dating of the site, level of sophistication, etc. Most of what I found online was pretty rudimentary.
Thanks,
Mitch