Your kids will love the iguana sanctuary! We did, but we are just big kids...
I have a longer form blog post on our time in Belize at the link below and towards the bottom of the post is a YouTube video we made for Belize too. If you skip to the end of the video it has footage of the iguana sanctuary. https://steemit.com/travel/@dbo/belize-island-paradise
Awesome, I'll check it out!