Underwater site searching

[chrispedersen]

Highest site level in seas from Edi's DB:
Non-unique: E3, A3, W3, S3, F1, H1, N1, D1
Unique: N2, D2

(There are S3/?3 unique deep sea sites, but it's irrelevant, because there is also a non-unique site at the same path level.)

Highest site level in deep seas (including "seas"):
Non-unique: E3, A3, W3, S3, F1, H1, N1, D1
Unique: N2, D2

Sea Oak is a N2, non-rare.