This is the first of two wreck penetrations. The video features a brief stay in the engine room about a 1:45 into the video. Look for a tear in the ships hull where the wreck split in half during the last hurricane. The diver with the blue fins I am following is Richie Hatherell who we met on the dive boat.
The Wreck of the Felipe Xicotencatl C-53 was originally a US ship built by Wilson Marine Shipwreck in Tampa Florida. The ship was later laid to rest in 1999 after being decommissioned and donated to Cozumel's Marine Parks organization.