Here's everything you need to know about Royal Caribbean's Crown & Anchor Society loyalty program. Ways to earn pointsEarning points in the Royal Caribbean Crown & Anchor Society loyalty program is relatively straightforward. Related: The ultimate guide to Royal Caribbean cabins and suitesThe elite level that makes a differenceThe Diamond Plus level is where the Royal Caribbean Crown & Anchor Society loyalty program really starts paying off. Related: The ultimate guide to Royal CaribbeanBest elite perkThe ultimate perk for Royal Caribbean Crown & Anchor Society members comes upon reaching the top Pinnacle Club tier. Unlike the programs at many lines, it offers one of the truly great perks of any cruise loyalty program: a free cruise at its top tier.