From Pec pod Snezka through the Obri Dul
Between Snezka, Pec pod Snezkou and Studnicni hora, the Upa glacier has sculpted one of the wonders of the Krkonose Mountains. A mass of ice 4 kilometres long and up to 100 metres thick has carved a massive valley called the Obri dul into the landscape. On the trail you will climb steadily, walk 6.6 kilometres and climb a total of 817 metres.
You can take the cable car back to Pec or descend along the yellow and green trail, which almost follows the route of the cable car. If you fancy a longer trip, then continue to Lucni bouda, Vyrovka and from there descend to Pec along the green and red hiking trail.