While old movies have taught me that sailors call ‘Ship ahoy!’ when they see one approaching, and (for some subtly dialectically-different distinction) ‘Land ho!’ when sighting a coast, I’m not sure if they call ‘Sea ho!’ when confronted with open water.* In any case, if this yacht in Moreton Bay and just a few kilometres north of Lamb Island turns right (or ‘starboard’, as it’s maritimely mandatory for sailors to call it), it’ll head straight out into the Pacific Ocean past the northern tip of North Stradbroke Island which you can see there on the, um, starboard side of the picture.
* Probably not, because it could get really boring every few minutes on a long ocean voyage.