^Just an estimation, but I think it's in the ballpark:
PALM J. land in 2006 (1 of 2 tunnels completed this month) / construction in 2009
Palm J.A. land in 2007 / const. in 2009
World land in 2008 / const. in 2010
Palm D. land in 2010 / const. in 2012
There is to be a
marine transport to link all of the World/Palm projects together that says it will be "executed" by 2020.
