Corcovado Coastal Hike (La Leona to Sirena)

Route Typology: Tropical Lowland Jungle / Coastal Traverse. Corcovado's most well-known route is the approx. 20km trek from La Leona Ranger Station to the remote Sirena Ranger Station. The Osa Peninsula has been described by National Geographic as one of the most biologically intense regions on Earth, and this trail provides a direct immersion in its primary rainforest. The route alternates between dense, humid forest canopy and long, exposed beach stretches. It is a strictly regulated expedition where a certified guide is mandatory. Hikers must time their movement with the Pacific tides to safely navigate rocky headlands that become impassable during high water.

The Seebachtal is among the most accessible valleys in the Hohe Tauern National Park. Starting near the Ankogelbahn cable car station in Mallnitz, the trail is nearly flat — wide gravel road suitable for strollers and wheelchairs to the lake. The focal point is the Stappitzer See, a clear lake surrounded by vertical 1,000m cliffs and numerous waterfalls. The valley is known for its 'Ice Holes' — a natural phenomenon where cold air escapes from rock crevices, creating a cool micro-ecosystem even in mid-summer.