Today, get ready for one of the longest and toughest (but rewarding) days of the journey. Start the day’s trek by climbing up to John Garner Pass – named after the British mountaineer in 1976. This is arguably the most famous pass on the trek, as it boasts an altitude of around 1,200 metres above sea level. Here, you’ll have amazing views of glaciated peaks and on a clear day – the Southern Patagonian Ice Field. Head down the pass through a thick forest, directly above the massive Grey Glacier. Along the way, you’ll have lunch and then begin the trek down to Lake Grey. The glacier stretches out below, like a huge white highway. Upon arrival on the valley floor, trek to the Grey Refugio for the night, where you’ll have free time to relax until dinner is served.