Karmina palace is a 5 star resort, huge waterpark. Entrance cost includes access to all amenities, drinks, and food. The water park has several pools all of different depths -- kids pool etc. There is a waterslide there, but it ends in 5' deep water and is very fast. Our 8 y.o. had no trouble though.
Our kids are 8, 12, and 14. Our 8 yo daughter did not like the camp, as there there were several kids that already were friends, so it was hard to join the group. The boys did enjoy themselves in the camp, but because of their ages they were able to have the run of the ship without parents... they prefered that.
It was hot and sunny in all of the mexican ports, but the first and last "sea days" were downright cool -- too cool to sit at the pool!
Re the waterslide... it doesn't end in water, it ends on the deck. On the other site www.cruisecritic.com
people have suggested there is some kind litigation going on with regard to the slide, and that is why it is not open. We couldn't see why it wasn't operating.
Can't say enough about the ship's staff...especially the waiters -- they pampered our kids every night. Little things like remembering their names, treating them with the same respect as adults, bringing them as many desserts are they wanted, remmembering they like hot chocolate, etc.
I think our favorite port was Ixtapa, very beautiful there. Manzanillo is a industrial port, and you will need to leave that area to sightsee. There is no shops, beaches etc by the ship.
If you have any other questions, let me know...and have a great trip, your little ones will love it.