OMG!

[Globalti]

These make me shudder, there's something primevally terrifying about these things:

http://i52.tinypic.com/2ijqnf5.jpg

http://i55.tinypic.com/dc7lns.jpg

 

[mcshroom]

Are these actual sink holes opening or just photoshops?

If it's a real sink hole then this one (not underwater) would have to be a scary one: -

 

[dan_bo]

Are these actual sink holes opening or just photoshops?

If it's a real sink hole then this one (not underwater) would have to be a scary one: -

Shiiiit!

 

[Globalti]

They're not sink holes, they're the drains for the reservoir water.

Here's a dry one:

http://i56.tinypic.com/2j3370k.jpg

 

[dan_bo]

Here's my favourite:

 

[mcshroom]

They're not sink holes, they're the drains for the reservoir water.

Ah ok

Look similar though

 

[ColinJ]

I stopped for a sandwich at the side of Ladybower Reservoir on my Hebden Bridge to Coventry ride in 2007 and heard a loud roaring sound coming from behind the reservoir wall. When I looked over the wall, I saw torrents of water disappearing down one of those two giant drains. It did look really scary. What got me was the fact that there were a couple of men in canoes paddling over to take a look! (There was a taped-off 'exclusion zone' but I wouldn't have wanted to get that close!)

As for the big hole in the street. It's real, it happened in Guatemala - link.

[media]
 ]View: http://www.youtube.com/watch?v=muvVDvm9rRI[/media] 

 

[krushavik]

God fancy getting sucked down one.

 

[I like Skol]

Here's my favourite:

Is that Dovestones?

 

[ianrauk]

Well you sure wouldn't want to get too close to one of those would you?

 

[dan_bo]

Is that Dovestones?

of course it is.

 

[PBancroft]

Those ridges on the drain do look temptingly like steps...

 

[XmisterIS]

I'd happily explore one of those sink holes when the thing was dry!

I remember when I used to do a lot of canoeing, big weirs used to terrify me - they are designed so that the water running over them plunges down to a depth of 10 feet or more to clean the water (so I was told!) and if you get sucked in, your body will go round and round down there for hours before being spat out at the side.

 

[Black Sheep]

Well you sure wouldn't want to get too close to one of those would you?

I have seen footage of someone skateboarding one

I think they'd used one in a dry resevoir to avoid the chance of water following them.

 

[benb]

Where do they go?