We will be in Cairns for 4 nights in July. One day we are doing Daintree and one day we are doing Kuranda. We would like to do a snorkel trip while there. Which is the best one for a 5 & 8 yr old? We will be at Dunk Island for 4 nights prior to Cairns, and hopefully will do a snorkel trip while there. My husband and I are avid snorkelers but we want to be realistic given the ages of our children. Thank you!