Are you leaving it in a marina or on an anchor
tend to have gates and security
(of some type), but moorings can be a different story all together.
The safest bet I'd go with is:
- Keep expensive stuff out of sight, and absolutely out of the cockpit
and off the deck
- Close the blinds so no one can look in and see your laptop
/ chart plotter / fancy schmancy gear
- Put a good lock on, and make sure you really dog the hatches.
- Make friends with someone who's going to be there for a while, and ask them to keep an eye on it. Most sailors are happy to do this, since they'll often need the same backup from you at some point.
But I'd make a distinction between safety
from a "someone is going to steal my stuff" point of view, and a "will the boat drag anchor and turn into toothpicks on a lee shore"?