(CNN) — Cruise industry folks know that vacationers have literal boatloads of sailing options to choose from these days, inspiring the trend to outfit ships with the most whiz-bang attractions and amenities at sea. Today you’ll find souped-up ships oozing outrageous features — such as amusement park-worthy diversions (racetracks with hairpin turns), high-tech innovations (robot bartenders) and Instagram-worthy settings (from ice bars to underwater lounges) — as the lines try to one-up each other […]
