Stewart Chiron is the founder of "The Leisure Pros," a travel marketing agency that specializes in the cruise industry.Courtesy of Stewart Chiron Cruise ships and their destinations are overflowing with travelers this summer. Among them is "The Cruise Guy" Stewart Chiron, an industry expert who has been on over 300 cruises. He shared 10 tips for travelers spending their summer vacations at sea. Cruise ships — and their destinations — are jam-packed with travelers this summer.Among them is Stewart Chiron, an industry expert also known as "The Cruise Guy." The travel agency founder has taken a total of 311 cruises in his lifetime, including 36 since since industry's reopening and two voyages this summer.