Not value enought
If you have done the snorkeling tour, if you have money and need to kill a couple of hours you should go to Ripley's museum.
But is a pity that afterwards you�ll probably remember the price more than the other things. You can actually see the all museum in one and a half hours. Of course, if we read every word of everything you�ll need more than a day, but in general 2 hours would be acceptable. That means 75 USD for a two hours ride for 2 adults and 3 kids.
For that money do the snorkeling tour. Will be 50 USD more expensive, but is 4 hours ride of pure joy and excitement for everyone.