San Juan Sailboat Charters (SJSBC) is an agency that leases sailboats. SJSBC does not own the boats. Instead, SJSBC leases boats on behalf of boat owners who want to earn income from their boats when they are not using the boats themselves, and SJSBC charges the owners a fee for this service. SJSBC likes to keep accurate records of its customers and charters, and customers are required to keep a log during each charter. Below is a sample list of