Cruise Carnival offers agent incentives for European cruises By Tom Stieghorst / February 06, 2013 Share 1 -- Carnival Cruise Lines is holding a sweepstakes for travel agents to promote its 2013 European cruises on Carnival Sunshine and Carnival Legend. Through March 8, agents who make a European booking on either ship can enter a drawing for a seven-day Carnival cruise of their choice. Other prizes are $100 gift cards and 10,000 bonus points in Carnival's travel agent rewards program. Entries are submitted at GoCCL.com. Follow Tom Stieghorst on Twitter @tstravelweekly.