Examples: Drygalski Mountains, Dome Concordia, Berkner Island etc.
There are multiple forms of support, check definitions under Guidelines / Aid. Multi-season circumnavigations are classified as Supported.
Select more than one Mode of Travel if the additional mode is planned and will be sustained and repetitive. If you prefer to use sub-mode terminology instead, add it below
Examples: Fatbike, Catamaran, Snowshoe etc.