The Grand Velas Riviera Maya Spa is one of the best spas in Mexico and it very well may be one of the top spas in the world. This gorgeous 89,305-square-foot facility features aromatic essences, flowers, candles and 40 luxury treatment suites where guests find harmony and serenity. There are plenty of spa treatments from which to choose, so much so that you might have a hard time making a selection. The hydrotherapy circuit includes a clay room, ice room and sensation pool, and there are separate hydrotherapy areas for men and women.