Momentum (ID 24947)

The beta is having some issues showing where this is but for those that need this, the goblin is through a cave which goes through to another beach. On your map it is the middle of the map, where there is land that sticks out furthest into the ocean. Northern side of the mountain that is also there......Same place you complete the quest Southsea Shakedown on the pre Cataclysm WoW. [quest=8366]

I found her! Not in the cave. Further down, in Lost Riggers Cove at (72,45). Hopefully this helps someone.

Don't be like me and try and go through the caverns of time, which is what it looks like you're supposed to do from the ? on the map. Instead, find the little cave located at about (67.4, 41.5) and go in through there.