O-SEE Ultra Trail
Lake Olbersdorf · Zittau Mountains Nature Park
Registration list 2026 Live Tracking 2026
The routes
of elevation gain
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of elevation gain
of elevation gain
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elevation gain
elevation gain
Trail Run route map
Food and drink for trail runs
Carbo Loading
You can refuel with us the evening before. The pasta party takes place on Friday, October 16, 2026, between 5:00 PM and 8:00 PM in the event area. You can book your pasta party ticket directly with your online registration.
Route refreshments
Whether you're in a hurry or prefer a more leisurely pace, you can replenish your energy reserves at our ten refreshment stations.
Because environmental protection and the responsible use of resources are very important to us, we will not be providing cups at the refreshment stations this time either. Therefore, please be sure to bring your own reusable containers for drinks.
For the longer distances of 50k, 75k, and 100k, we have a special treat: Upon request, we will deliver your own favorite energy boost to the aid stations "Auf der Heide," "Hostinec U Tří Lip," and "Malevil." For this service, your container (no glass) marked with your name, bib number, and location must be handed in at the "Refreshment Desk"/Luggage Storage (Event Area) by 8:00 PM on Friday.
