Shaggy & Scooby-Doo Get a Clue! (2006)

S02E06 Cruisin' for a Bruisin'

Dr. Phibes, nearing a mental collapse, opts to take a break and go on vacation. Meanwhile, Shaggy and Scooby manage to win tickets for a Mexican cruise, coincidentally the very same cruise that Phibes has chosen for his getaway.