Neil and I had a destination wedding in Halifax, so we waited a full year before we took a traditional "get away from it all" honeymoon. We went to Mexico just after our one-year anniversary and were amazed to learn, after we had booked, how many people we knew had been to Tulum. Everyone we talked to mentioned the ruins, the resorts, and the beaches. In my perspective, above all those things, Tulum is an amazing place for the animal lover. We got to feed monkies, swim belly-to-belly with dolphins, play games with incredible parrots, and that's not even including the massive coral reef there, which is one of the best if you like fish!
My top recommendation if you're planning a trip to the area is the Akumal Monkey Sanctuary. They take in all sorts of animals that are rescued from illegal housing, the circus, or unsafe living conditions. I can't express how amazing it was to feed the little squirrel monkies and have them jump up and down on our heads!
Next time, I've promised Neil more relaxing and less adventuring... the jury is still out on whether I'll be capable of delivering on that promise!