Liechtensteinklamm — The Helix Chasm
St Nectan's Glen Waterfall
Liechtensteinklamm — The Helix Chasm vs St Nectan's Glen Waterfall: Intensity Score Comparison
Both routes share a similar overall intensity (8 vs 12). Depending on personal strengths, the challenge relies more on St Nectan's Glen Waterfall's technicality versus the physical output of the other.
Model-based (not a field report) · Evaluates overall route demand, not danger.
Liechtensteinklamm — The Helix Chasm
One of the longest, deepest, and most impressive gorges in the Alps. The Liechtensteinklamm is famous for its narrow walls that are so close they almost block out the sky. Following a massive rockfall in 2017, the gorge was upgraded with the 'Helix'—a spectacular spiral staircase made of corten steel that descends 30 meters into the depths of the chasm. The path leads over bridges and through tunnels to a massive 50-meter waterfall at the end of the walkable section.
St Nectan's Glen is an enchanting, atmospheric woodland valley deeply cut into the Cornish slate near Tintagel. This short, easy 1.9-mile (3km) circular walk follows the tumbling River Trevillet through ancient, moss-draped oak trees and ferns. The destination is a spectacular 60-foot waterfall that has punched a flawless circular hole directly through the rock basin, creating a deep pool below. The glen has been designated a Site of Special Scientific Interest (SSSI) due to its rare flora and is considered by many to be one of the most spiritual and magical places in the UK.
Head-to-Head Metric Analysis
HikeMetrics Hazard Scale — Explanation
The HikeMetrics Hazard Scale is a proprietary 5-point classification system that evaluates hiking routes across five dimensions: physical demand, technical complexity, altitude exposure, weather risk, and rescue accessibility.
Unlike generic star ratings, the Hazard Scale is calibrated against altitude profiles, elevation gain per day, and logistical isolation factors — making it the most precise route classification system available.
Full Scale Documentation