Along the lagoons, coasts, and rivers of Florida, we have begun to examine subaqueous soils and the submerged aquatic vegetation (SAV) they support. Our objectives as subaqueous pedologists are to explore relationships between landscape, vegetation, hydrology, soil characteristics and ecological function. Recently, we have begun several studies in Florida which examine these properties and their interdependencies. One study focuses on the anthropogenic effects of a spoil island mitigation project on seagrass communities in the Indian River Lagoon (IRL). A pre- and post-mitigation soil survey will provide information on subaqueous soil formation for future SAV restoration efforts. Another study investigates the shallow, unprotected seagrass flats occurring along Florida's Gulf Coast. These areas differ from the IRL because of the dense SAV that occurs on extensive flats despite the lack of barrier island protection. Finally, a project in freshwater spring-fed rivers along Florida's Gulf Coast examines relationships between subaqueous soil type and nutrient biogeochemistry in an attempt to link soil characteristics to ecological function. For each of these studies, innovations in soil sampling and mapping are contributing new methods to subaqueous pedology. The results of these investigations will offer insight into Florida's subaqueous soils and the future applications of pedology in subtropical aquatic environments.