Holland America Line attracts scores of devoted fans who love the grown-up-focused experience on board. Entertainment centers on what a mainstream, mostly Baby Boomer crowd would enjoy. Its signature Music Walk venues — B.B. King’s Blues Club, Rolling Stone Rock Room, and Billboard Onboard — showcase a wide array of musical genres spanning the latter half of the 20th century and draw enthusiastic crowds nightly. Music Walk is available in its fully imagined state on the line’s newest 2,668-guest Pinnacle-Class ships, Rotterdam, Nieuw Statendam, and Koningsdam, and in assorted variations on its other vessels (with the exception of its smallest and oldest ships, Volendam and Zaandam). Holland America guests also appreciate the little extras for which the cruise line is known, from complimentary hot appetizers during the very much observed predinner cocktail hour — at bars all over the ship.