The Chhari trek, considered a tough trek, follows a set ancient route with stops at the designated places.

This is actually 8 hours tough trek with an expert guide but usually trekkers prefer to make it as 3days comfortable Trek to understand Nature & the Ethnic Culture of this region.

Mr Ryan was three days into the famous Haute Route tour, a tough high-altitude trek which starts in Chamonix, France, and cuts through Italy, ending up in Zermatt, Switzerland.

It's a tough trek anyway, I can't be sure everybody is going to make it.

The glacier offers a tough trek as compared to Pindari and Kaphini.

Many visitors hike down from one rim, spend the night at the bottom of the canyon and hike up (a much tougher trek) to the other rim the next day.

This," he added, "has been a tough trek for a while and we're not out of the woods yet.

We then took the tougher trek which Larsay mentions which is steep but not too bad.

Widely considered the toughest trek in Europe the GR20 follows the spine of the Corsican mountains from the north west to south east of the island.