First off. I don't know if this is late, if it is too late please ignore.
Answer:- 1, camp there
Reason:- I can see maybe 2 answers there (that fits with the comment under the choices) but I recon this is the most obvious one?
Lets face it, after having rowed or paddled an emergency boat to shore after being attacked by a sea monster! You're going to need some rest before you become exhausted, you'd also probably need time to to accept everything that's happened lol. It would give you time to think and plan what to do next.
going after the creature, still with no weapon or any knowledge about it sounds just as suicidal as before,,, although you did say find it and not fight it.. which would mean venturing to places unknown!
You wouldn't want to stay untill it comes, possibly. I guess it depends on how long untill the creature comes as you could potentially set up a trap or something for it. So this would have been my second answer
Unloading the food is sensible, but again relating to my other answer, if the ship is damaged and has a breech in the hull, that baby is going straight to the bottom o the ocean! And you're going to try and save it in a rubber dingy? =P . Also,, again relating back to my first paragraph you'll probably be exhausted from rowing/paddling to the shore.
Date and time: 16:16 3rd feb
My other sig was too big, so here's a nice boring one for you....