How do I get to Umbral Grotto

How do I reach Umbrall Grotto? I tried to run there, but there were rocks in the way (I'm assuming a certain quest needs to be done). Its definetly a part of the sneak peak event, but what do I need to do to get there?

Wait a week for GW:EN to come out

What makes you say it's definatly part of the weekend?

Its not a part of the sneak peak, you cant get there.

I'm quite sure its in the event because its posted on the map on the official site. The map that dictates places you can go during the event. Plus, I heard of a couple people that go there.

Uh.. that map appears to be for the entire expansion, not the preview.

Correct. That is just a cut and paste off the main map for GW:EN, which is ALSO on the main site.

You may have noticed it doesnt show Gunnar's as a city, so there was no real reason to assume it was correct.

O. Thank you guys. Now I wont try to go there until next week, lol. Thank again