Click on this National Geographic link for the clearest view from space of the remarkable bridge, the setu bandha. This is clearer than the Google Earth pics.
This ain’t no shoal. This ain’t comparable to the Great Barrier Reef of Australia. This is a bandha, a bund, a bridge atop a deep canyon going down into the interior crusts of the earth yielding mannar volcanic rocks. See the heatflow map of Rama Setu region comparable in thermal springs to the sub-Himalayan region.
Rama Setu region is as intense geo-thermally as the sub-Himalayan region. This is proved by thermal wells in the southern coastline of Bharatam.
How dangerous is it to work in such a volcanic mid-ocean and create a channel passage across Rama Setu? This channel an idea was shot down emphatically by the first committee set up after Independence, Sir A Ramaswamy Mudaliar Committee, 1956 which asked that any idea of cutting a channel passage across the bridge should be ABANDONED. What could be tried, if at all, is a land-based canal across Dhanushkodi as in Suez or Panama canals.
3 July 2007