For what it's worth, I've worked on several versions of the Biarritz where the approach area was a bit lower than the green, but sort of ramped up toward it, because of the natural slopes. [These would include the holes at Yeamans Hall and Mid Ocean, as I first saw them.] On those, the leading or tee-side edge of the "front plateau" is maybe five feet lower than the front of the green, but the opposite edge [just before the swale] is only maybe a foot or two lower than the front of the green.
Lido, however, started from flat ground, so I don't know why Raynor would have made the approach significantly lower than the green in that location.
Here is a photo of Mid Ocean.
That is sort of the general idea of what I was thinking Lido's was like, except that the distance between the end of the crossing bunker and the front of the green at Lido appears to be 50 yards based on my measurements after locking it into scale using the aerials + drawings and plastacine. The drawings appears to show the dip starting almost immediately after the bunker, so that is still about a 40 yard gully. It also seems a little different because of that horseshoe shape to the way that it begins.
I'll put more work into this and will post updated versions from better angles when I can for more feedback.
Just for others to consider, here are what I think are the 2 best views of the hole (in addition to the one where they are mowing the green):
The camera is from a fairly elevated position. I drew a line where it looks like the green would start based on the slopes for the false front and another over the horizon of the shelf. Note that the cross bunker isn't really visible. It looks like a sliver of it might be peeking through. The long grasses might be blocking it, or it may have been washed away by this point. Similarly, this tee isn't the original tips. It might be a forward tee or the back tee might have been lost.
And here is the pic with Ray putting. Note that in this pic, the right side of the green (the side toward the water) appears pretty flat, while in the pic above, it is highly built up. It seems logical to think that the Ray version is more original and the pic above might be after fortifications were added to protect the green from the surf. This would reconcile with Tommy's comment, which is that the green was basically on the beach when it was originally built. The green above and the one that I have built so far really both have that buffer between the target and the beach. I'm strongly reconsidering that now.
One other thing that was bothering me was that I couldn't see that big right to left tilt in the pic with the mower, but it was so prominent from the pics from the tee. I think the answer was that it was no illusion. It just changed. This poor hole was getting battered right out of the gate.