New design idea - Under water hotel

If we stop for a minute to think about this, it sounds outrageous! Maybe land is not enough... think about taking the extra step...?
I was amazed by the new proposal of an underwater hotel in Dubai. Seems to me like a 'Sponge BoB Story' or another idea coming from some cartoon but after reading this I have to reconsider.

Plans have emerged for the construction of an underwater hotel in Dubai. The "Water Discus Hotel" would allow guests to sleep below the surface of the sea, offering a view of underwater life.

http://www.deep-ocean-technology.com/home/projects/underwater_hotel.html

The Water Discus Hotel would feature large disc-shaped buildings both above and below the water.

The underwater section is be 10 metres below the surface and would consist of 21 hotel rooms, a dive centre and a bar.

The hotel's "legs" would actually be lifts, transporting guests between the two sections.

The proposal is still in its infancy, but don't hold your breath - the hotel may never see the light of day. A similar project, entitled Hydropolis, was conceived in 2006, but no construction ever occured, while the "Poseidon Undersea Resort" (artist's impression, pictured) was due to open in Fiji in 2008, but plans appear to have been scrapped.

The Rangali Island Resort in the Maldives boasts an underwater suite and restaurant - and offers underwater wedding ceremonies.

And the Huvafen Fushi resort - also in the Maldives - has an underwater spa.

http://www.kiwicollection.com/hotel-detail/huvafen-fushi-resort-maldives

The argument still continues... When looking at the pictures above it is clearly visible that there was no dispute for the prime spot, perfect elevated erf or the beach front lot itself. 

Unfortunately this is a challenging one, I always considered the sea a 'no-mans-land'...

So how would we go about to do this or is it also just a pretty picture?!