Island Freight Forwarders, they are located at the former Island Construction in San Pedro and at Benny's in Belize City. San Pedro: 613 4299 and in Belize City: 223 6236 email: sales@iffops.com. The alternative is Caribbean Queen Shipping from Caribbean Depot, they have the most barges but often charge more 226 2619. I believe that Design Depot also runs a barge to the island, but I have no experience with them.