On a Crystal cruise it is not difficult to find what you seek. In fact, your search for a place beyond ordinary is over. “Splendidly Uncommon”! Ablaze with intoxicating color and high style, Crystal Cruises' Harmony, Symphony and Serenity are ships of superlatives that capture the aura of extravagant parties, big, snazzy cars and high tea in the Palm Court while Porter, Gershwin, Mozart and Bach float on the air. The Experience: Six-star elegance and style personified! Accommodations include.