Dropped through floor - walking on water

I was running around in Limsa, when suddenly I met an invisible wall. Other players had already been running through there, so not a place I wasn't supposed to enter. I tried to run in a different direction, and ended up falling through the floor (or off the edge, I really don't know).
Next, I find myself on a lower level of Limsa, near a tunnel path. I tried running in there but kept meeting invisible walls here and there, and accidently stepped outside the edge and realized I could walk on water. New skill lol?

This happened around x:10 y:15, near the Armorers' Guild.

http://i1225.photobucket.com/albums/...ps1e499870.jpg

Dropped from up there:
http://i1225.photobucket.com/albums/...ps389f48df.jpg

Then, after trying to get back up on solid ground, I got stuck in the middle of the docks. Yeah. And my character was standing with his arms out all the time, frequently doing angry shouting face (I didn't trigger any emote). lol That was actually kinda funny, it looks as if he's actually stuck. Anyway, here's the proof:

http://i1225.photobucket.com/albums/...psd5da1e5a.jpg

Edit: End of story is, I couldn't budge, so I returned back to Horizon.

lol i haved the same lag two day ago and i have a pics (because the oter player can see us when were falling down! XD)

Like this one! The guys was my friends he spend like 30 minute of is time juste for finding my in the map XD

https://fbcdn-sphotos-g-a.akamaihd.n...08853462_o.jpg