The Sadelin trail is a hiking trail that leads through three municipalities on the Åland islands; Hammarland, Finström and Geta. The trail consists of varying terrain; meadows, forests, mountains and beaches. The trail passes villages and sights and the nature reserve Hockboleholmarna and more historical places; such as Sali's battery mountain. The trail is marked with white painted posts, peaks, mountains and trees.

This line sees a route going from the north of London (Stanmore) and ending at Stratford in East London. More famous now due to it being the home of the 2012 London Olympics, and the Westfield Shopping Centre. 
The purpose of this route it to run from station-to-station, trying to stay true to the line, as if it was above ground. This obviously hits a snag around Canada Water and North Greenwich, where the route doubles back on itself to continue the journey to the next station.

Dôme de Neige des Écrins (4015m) is a mountain in the Massif des Écrins in the French Alps, located by the Barre des Écrins (4102m).

The route starts at the "green island" right in front of the maison du Parc National at 1880m (Le Pré de Madame Carle).

It crosses the Torrent du Glacier Noir and the Torrent du Glacier Blanc twice to reach the Refuge du Glacier Blanc (2520m).