Doubt it is fake.
“Depending on where exactly this is, often times, landscapers will lay down plastic sheet on bad soil then plant sod on good soil laid on the plastic. If this is the case, a water line may have broke and now you have water under the plastic liner, hence the bubble. If it’s not liquid, natural gas could also be a cause. The safe bet is though, there is a plastic liner under the sod and whatever is under the liner has caused the bubble.”
Read more at http://www.inquisitr.com/256627/ground-bubbles-and-ripples-like-waterbed-in-strange-turf-blister-video/#Fzzz3dF1ju4mPUWV.99

#(removed comment) Not fake - Here is a good example of one that is leaking. http://www.youtube.com/watch?v=EA7iZPymiQM&feature=related

Did the Earth forget to use some acne wash in the morning?

Dude really likes his lanyard.

Is it save to drink the water inside?

fair enough i know when im wrong, looks pretty weird

I want one

I really hope shark comes out

I would sleep on it.
A natural water bed

For God's sake, what's under the grass!
Probably a hidden "waterbed" or a local swamp.

It looked like a glitch in the matrix, if i saw that id swear i was high on something "almighty"

#5 you shouldnt.
after he ran over it for 30 times
its not water any longer but pure mudd