Oswald Rodrigo Pereira of Poland has just completed a remarkably fast acclimatization ascent of 6,476m Mera Peak in Nepal’s Khumbu region, just days after arriving in the country.
This was part of Pereira’s preparations for an upcoming winter attempt on 8,163m Manaslu. He will join Italian Simone Moro and Nepalese Nima Rinji Sherpa, who summited Mera Peak a day earlier as part of their own preparation.
Pereira climbed solo from Khare (4,880m) to the summit in a single push of 1,600 vertical meters in 6 hours and 15 minutes. What stands out is the overall timeline: Only 61 hours elapsed between leaving Poland and standing on the summit of Mera Peak.

Oswald Rodrigo Pereira will join Simone Moro and Nima Rinji Sherpa on winter Manaslu. Photo: Oswald Rodigo Pereira
Pereira says that the pre-acclimatization work he did before the trip with a hypoxic tent is paying off.
The trio plans to reach Manaslu Base Camp on December 21.