The Gaisalmsteig — Achensee’s Fjordside Path

The Gaisalmsteig is one of the most scenic lakeside trails in the Alps, often described as 'Tyrolean Fjord walking'. Connecting the villages of Pertisau and Achenkirch along the western shore of Lake Achen (Achensee), the trail is only accessible by foot or by the Achensee boat service. The path alternates between wide forest tracks and narrow, rocky ledges that drop directly into the turquoise water. Halfway through, the Gaisalm mountain inn provides a secluded retreat with no road access, reachable only by those who hike or take the ferry.

Route Typology: Developed Volcanic Crater Access. Among the most accessible active volcanic craters globally, Poás Volcano offers a direct look at the dynamics of active volcanology from a structured environment. A well-maintained, almost entirely paved trail leads from the modern visitor center through a unique, stunted cloud forest to the main crater rim at 2,708m. The primary attraction is the mile-wide active crater containing Laguna Caliente, a steaming, acidic lake that frequently vents sulfur dioxide. An additional loop leads through the mossy highland vegetation to Laguna Botos, a dormant crater lake that contrasts sharply with the active volcanic landscape. Due to volatility, access is strictly regulated and timed by SINAC park rangers.