OK, here are four quotes from the first three web pages I visited speaking of the Empire Gem;
Big difference between high 60's and 51 degrees!
If a ship is upside down with both gunnels buried in sand, one perspective to take with regards to "swimming under the bow" would be that you are actually above the wreck?
Which is the 1.4 ppo2 depth of 32%.
Summer Temperature: mid/hi 70s, but subject to thermocline to the high 60s on the bottom
Big difference between high 60's and 51 degrees!
Although large and impressive to see, the bow offers nothing other than a large looming hull bottom to inspect with some sparse scattered debris to either side. The entire bow section is intact from the stem to where the hull was torn in half just prior to the engine room. However, it is completely upside down with both gunnels buried deep in the sand – simply a huge encrusted hull bottom with nothing in the way of artifacts or anything else of interest.
If a ship is upside down with both gunnels buried in sand, one perspective to take with regards to "swimming under the bow" would be that you are actually above the wreck?
The stern is on the port side though with the decks rising to appx 110’
Which is the 1.4 ppo2 depth of 32%.
However, we have dived the Gem in conditions with no current and over 100 feet of visibility and it is impressive in these circumstances.