Haven Riviera Cancun All Inclusive resort is an adults only resort located in Riviera Maya, Mexico. Haven Riviera Cancun features two large pools, a wide beach for this part of Riviera Cancun, and good restaurants. Serenity is their Club Level. If you book a Serenity room, you'll get extra perks like access to an exclusive restaurant, 30 minutes of hydrotherapy per day, a butler, and access to a special lounge. Take a look: