We booked a two hour tour for my adult daughter and myself. First off, a million thanks to Geotrippin for organizing a great trip. And Shanna, our guide, was just fantastic. She has advanced degrees in marine conservation (I will get the specifics wrong) and is VERY knowledgeable and passionate about marine flora and fauna. While skillfully guiding us through some very low tides in the estuary, she provided us with so much background information and history, She pointed out dolphins (and we got really close), egrets and pelicans, mullets, sea turtles, oyster beds, and was able to answer all of our questions about the sea animal and plant life in the area. It was fantastic - highly recommend.