Thanks Jen...I have done quite a bit of research on both of them today (mostly from trip advisor), and what I can come up with is that Xcaret has a lot of various things to do, but seems more laid back and nature'ish. My FI is really into that stuff -- birds, fish, etc. Xplor seems more active. I love the camera aspect of Xplor -- every helmet has a number/sensor that takes pictures of you all over the resort, and you can buy the who disc of your whole trip/day there for less than $40 a person. A lot of the pictures look like it is a lot of fun. I asked him to look at both websites and he really doesn't care where we go (he wants no part of planning lol). I was first leaning towards Xcaret because I thought he would really want to do the snuba or shark swimming, but now I think I'm leaning towards Xplor?