30 January, 04:46:
Group guides Andrei Berezin and Boris Egorov from Argentina: The fourth group of the Russian camp of the 7 Summits Club on Aconcagua made an acclimatization rotation with an overnight stay on Nido de Condores (5600). Today we climbed to the Plaza Berlin (5920), from where we descended to the base camp of the Plaza de Mulas. Tomorrow, according to the program, it will be rest. Future plans are weather dependent.