5035 deep dive to 1800's anchor part 1

Don't do this. Beyond recreational dive limits. 80 cu ft air tank. 21% oxygen content. Decompression dive. Pretty boring. Just wanted to document a dive I have done many times. Anchor has pile of chain next to it. My best guess is a deck hand didn't secure the chain to the boat before dropping anchor. Anchor is sitting on sand with very long chain piled up right beside it. (The pile that looks like coral beside the anchor). Oops.