The hike to Rainbow Mountain (Vinicunca) in Peru is typically a 6.2-mile (10-kilometer) round trip when starting from the standard trailhead at Phulawasipata. While the distance itself might seem manageable for a regular hiker, the true challenge is the extreme altitude; the hike begins at approximately 14,000 feet and climbs to a staggering 16,500 feet (5,030 meters) at the summit. Because of the thin air, the 3.1-mile trek uphill usually takes between 1.5 to 2 hours for most visitors, even those in good physical condition. In 2026, some tour operators have access to an "alternative" shorter route that can reduce the walking distance to about 4 miles round trip, but the classic 6.2-mile path remains the most popular. It is highly recommended that travelers spend at least two to three days in Cusco to acclimate before attempting this hike. Despite the physical strain and the potential for altitude sickness, the reward is one of the most unique natural wonders on the planet—a mountain peak adorned with vibrant, naturally occurring stripes of turquoise, lavender, and gold.