Only spot is standing on the sub.Chuck is correct. The temples (part that goes from frame to ear) will, indeed, create a crease that will cause your mask to leak. It may be slow enough to get a few good looks in, but you will grow very tired of having to surface to pour out the water and re-adjust it....
Also, wear your inflatable vest out there. It is not shallow enough to stand anywhere to catch your breath once you leave the shore line, so the flotation helps a lot.
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