Water taxi service between Corozal and Ambergris Caye.
Unless there has been a change in the last couple of weeks...
The “Thunderbolt” departs Corozal daily at 7.00 am, and departs San Pedro daily at 3:00 pm.
Trip duration: 2 hours
Cost: BZ$45 one way; maybe BZ$80 for round trip; purchase ticket at the pier before departure.
I haven't got any contact details.