Maupertuis Beach is a coastal beach within Flinders Chase National Park on the south-western coast of Kangaroo Island, South Australia. It is a significant feature along the Kangaroo Island Wilderness Trail, with the trail descending directly onto the beach itself. The beach is characterized by soft sand, and the surrounding dune ecosystem is fragile, with endangered hooded plovers nesting in the dunes. The coastline here is exposed to the Southern Ocean, offering expansive 180-degree views of a dramatic and wild coastline. The area is part of a geologically significant landscape, with the fold axis of the Maupertuis Anticline located approximately midway along the length of the beach. For paddlers, access involves a walk from the trail, and the launch would be directly from the sandy shore into the open ocean. The environment is remote and pristine, with wildlife sightings potentially including seals that stray from nearby Admirals Arch, as well as pied oystercatchers on the shore. The water is part of the mighty Southern Ocean, and conditions can be testing and feisty, with significant exposure to wind and swell. There are no specific paddling facilities or amenities at the beach itself, as it is a natural area within a national park. The beach is situated roughly 10.6 kilometers from the central Flinders Chase area, near landmarks like Remarkable Rocks and Admirals Arch.