Calif Bill wrote:

Checking in by phone is probably more restrictive in Washington than San
Diego. As most of the boats fishing MX waters do not make landfall. It is
only 13 miles to the Coronado Islands and the offshore banks are further
out. Almost have to get to Ensenada to dock.

In fact, here's a link that outlines the new customs requirements in
January 2007 for all "air and sea" travel from other North American
countries to the US. Travelers arriving by private car get another year
before the full force of the new regs kick in.

http://travel.state.gov/travel/cbpmc/cbpmc_2223.html