We took the Princess excursion to the butterfly darm on St Maarten in 2005, and we really enjoyed it. The naturalist provided a lot of interesting information, and then we were free to wander about the enclosure. We were lucky enough to have some of the butterflies alight on us and took some neat photos of this.
It's very low key and relaxed, so your children might like it.
2004 Coral Princess - Panama Canal
2005 Sun Princess - Eastern Caribbean
1/06 Island Princess - Hawaii
2/07 Sea Princess - Southern Caribbean
11/07 Golden Princess - Mexican Riviera
3/08 Diamond Princess - Hawaii
11/9/08 Tahitan Princess - Tahiti & French Polynesia
9/13/09 Star Princess - Alaska
3/14/10 Golden Princess - Hawaii