If you know someone who's traveling through Baja with the hope of catching the ferry from La Paz to Mazatlan (or viceversa), let them know that the ferry has cancelled this route as of this week indefinitely. Your options are:
1. Take the ferry from La Paz to Topolobampo (about 500 Kms north of Mazatlan) - The good thing about this is that you can catch the CHEPE train to visit the Copper Canyon area right from Topolobampo. If you're not familiar with Copper Canyon, apparently it is much larger (not deeper though) than the Grand Canyon. Shouldn't be missed in your itinerary through Mexico.
2. Fly from La Paz to Mazatlan. I checked with VIVA Aerobus - They have larger planes (737). They fly about 3 times per week. They accomodate sports equipment (including bikes) as long as they are 25 Kgs and 158 linear cms. at no extra charge. You can carry more but the extra charges apply:
159 cms. - 319 cms. MAX = $275 pesos flat (about USD $22)
Per EACH addtl KG. extra = $275 pesos (yes, per Kg!)