In the evening we passed by Cape Mabo; and afterwards steered away south-east half-east, keeping along the shore, which here trends south-easterly.  The next morning, seeing a large opening in the land, with an island near the south side; I stood in, thinking to anchor there.  When we were shot in within two leagues of the island, the wind came to the west, which blows right into the opening.  I stood to the north shore, intending, when I came pretty nigh, to send my boat into the opening and sound, before I would venture in.  We found several deep bays, but no soundings within two miles of the shore; therefore I stood off again, then seeing a rippling under our lee, I sent my boat to sound on it; which returned in half an hour, and brought me word that the rippling we saw was only a tide, and that they had no ground there.