The Ocean Science Radio team chats with "Deep Sea" Dawn Wright, a geographer and oceanographer and Chief Scientist at ESRI (The Environmental Systems Research Institute) - one of the world's leading suppliers of GIS software, web GIS and geodatabase management applications. We cover why mapping the bottom of the ocean is important, some cool ocean mapping history, and her recently released book "Mapping the Deep: Innovation, Exploration & the Dive of a Lifetime" about her 2022 dive to the deepest part of the ocean, the Challenger Deep.