In-game, your notebook describes this area as follows:
Located in the East of Ciceros Strait, this rounded area of shallows looks like it was cut out of the surrounding rocks. Its beautiful white sands are home to the many Mediterranean Monk Seals in the area.
A programming shortcut concerning the aesthetics of the shore area was taken. While on land, the above-water part of the entrance to the White Cove looks identical to the above-water section of the entrance to Triton Cove.