Originally Posted by BillSeurer 
The foes in the Fjord are NOT easy. They are of vastly higher level than the foes in the starting area and that is why they give you a lot more XP.
^This.
Assuming you're a mere mortal like most of us, and not an elite gamer like DeepO

, the goblins in the Orobas Fjords should be significantly tougher than anything in the common parts of Broken Valley.
Getting 3000 xp might seem a lot to you now, but later in the game you'll be getting a lot more than that.