Lars Andersen is a full-time river guide and naturalist for Adventure Outpost in High Springs, Florida. He is author of 'Paynes Prairie: A History and Guide,' 'The Paddlers Guide to the Suwanee River Wilderness Trail,' and 'The Paddlers Guide Map to the Gilchrist County Blueway.' In 1988, he wrote and produced a self-guided tour on audio cassette, 'The North Florida Adventure.' In 2014, he was honored with the Award of Excellence by the Florida Master Naturalist Program. Other awards include: 'Unsung Hero of the Year' award from the Florida Defenders of Environment in 2015, and the 'Springs Advocate of the Year' award from Florida Springs Institute in 2017.