I, too, feel incredibly let-down by this Expansion Pack. The world is way too small, with only two empty lots that are hard to build upon because of the water line. I've sent my Sim to 'live' there twice, but I get bored for lack of things for him to do. And end up moving him back to where he was prior. In the long run, even the mermaids don't thrill me. Now, true enough I'm not into the Occult, and the aliens which I used to enjoy aren't as interesting this go-around. Mostly I'm vexed that we didn't get an option for a 'human' Sim to have the pointy ears. I still use a mod for this.
But, I digress. I wasn't even able to have my Sim swim while he was there. The first time he went to one of the designated beaches. He could ride around on the aqua-zip and that was fun. But I never could get him to snorkel. I have no clue what floating on his back even looks like. It hasn't been possible to get him into the water that surrounds the lot I placed him on. What is up with that?
Back in Sims 3 my singer Sim would deep sea dive for recreation. It was a nice way for him to 'decompress'. (Pun not intended. Okay, so maybe it was.) Knowing now it's just a rabbit hole leaves me feeling a bit sad. I paid forty dollars for what? The scant furnishings offered? Some of the clothing is cool, true enough, but I'm almost certain cc is out there.
I just don't feel this was worth the cost of an expansion. This is not even a Gamepack, but closer to that than a full EP.