Holland America Line

Tradition long has been a touchstone for this storied line, which dates to 1873 and is known for carefully crafted, globe-circling itineraries on midsize ships. But Holland America has been shaking things up in recent years with lively new venues such as B.B. King’s Blues Clubs and Billboard Onboard dueling piano bars. Couples and retirees are the market; families with kids might want to look elsewhere.