President Bush is in Cancun, Mexico, for a 2 day summit with Canada's Prime Minister Stephen Harper and Mexico's President Vicente Fox.
A tour of nearby ruins starts the day.
Then the work begins on such issues as trade and immigration.
The touchy issue of immigration comes up even as the U.S. Senate debates bills that would variously punish people in the U.S. illegally or help them stay and work.
Canadian lumber trade exports will be a key part of discussions between Harper and Bush.
Part of the reason for holding the North American summit in Cancun is tourism.
The resort area is still recovering from last year's pounding by Hurricane Wilma.