This is an obsolete version; please refer to the GitHub page for the latest versions of guides to access OCTOPUS data: https://octopus-db.github.io/documentation/usage.html This user guide outlines the features and functions of the OCTOPUS web interface, accessible at https://octopusdata.org/ Section one describes menus and tools within the interface. Section two describes example use cases that demonstrate the application of these tools. For an overview of the OCTOPUS database, see: https://epicaustralia.org.au/resource/octopus and https://www.re3data.org/repository/r3d100013702 For detailed information about the OCTOPUS database structure, data collections, and documentation, see: https://zenodo.org/communities/octopus-database/