Expensive, but worth going at least once. It is $20 for adults and $12 or $13 for kids over 2. The snack bar prices are outrageous... $3 for a bottle of water, $5 for a rice krispie treat... but it is all worth it when you step into the butterfly sanctuary. The butterflies are literally everywhere, probably thousands of them in there. They are not shy. One landed on my 3 year Olds arm and stayed there while we walked through the whole exhibit. Very cool experience.