There is a now a weekly ferry and freight service between Belize City and Puerto Cortes, Honduras.
The Pride of Belize leaves Belize City at 9 am Saturday and returns from Pte Cortes Monday at Noon .
Fare is BZ$145 or L1375 one-way.
See
http://www.prideofbelize.com/This is in addition to the weekly boats between Dangriga and Placencia and Puerto Cortes.