[Ellipsis]

Ok, so maybe this is a really stupid question, but how the hell do I get to Razors Pointe?
We're supposed to find the corpse of the princess of Dernholm there, in order to complete the quest her father, the King, gave us.
The thing is, even though the location has already appeared on the World Map, I can never select it. And I've tried doing that while East and West of the mountain that divides the map, but it makes no difference.
The closest I got was by marking a nearby point and walking along the coast; I actually found the shipwreck site and a few barrels on the beach, but I can't get to the ships (and, I suppose, the girl's body) because there's a rocky formation (Razors Pointe itself, I presume) that doesn't allow me to cross to the other side of the beach.

I know this is a minor quest, but I want to complete it, and this is bugging me.