hi shellybelly welcome to the forums,
First thing is The Calador Apartments are good, not heard anything bad about them.
Basically the building that you mean that was being built is actually a big minigolf course, really helpful to tire the little ones out after a happy meal, by the way the bowling alley is a restaurant now.
Touts are still around but i think a lot less than then.
About the boat trips, the first it comes to my mind is one called multiacuatic, (their website is not working at the moment) and another one which is heavily advertise in puerto rico at the moment , cant remember the name but they claim in their flyers that if you dont see dolphins they will give you another trip for FREE!!! The prices are around 24 euros per adult and 12 per child.
Any more questions dont hesitate to ask us here.
Thanks