For the tours you narrowed it down to:
La Iguana has a better Mexican Fiesta than the Krystal, but the kids will like both.
Kids your ages will enjoy Sea Life Park - gets boring after a while for older kids and adults, but the little ones like it.
Sunset Cruises are more geared toward adults than kids.
The Pirate Ship is a good suggestion, Swim With Dolphins, Los Veranos Canopy Tour, or the Reptile Encounter are good ideas. Las Caletas is popular with families as well. The Paradise Escape is a good cheap tour too popular with families.
La Iguana has a better Mexican Fiesta than the Krystal, but the kids will like both.
Kids your ages will enjoy Sea Life Park - gets boring after a while for older kids and adults, but the little ones like it.
Sunset Cruises are more geared toward adults than kids.
The Pirate Ship is a good suggestion, Swim With Dolphins, Los Veranos Canopy Tour, or the Reptile Encounter are good ideas. Las Caletas is popular with families as well. The Paradise Escape is a good cheap tour too popular with families.