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XTERRA O-SEE
Ultra Trail

17-19 October 2025

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Oybin, Germany
100 km
3.654 m+
Trails & more
Passion. Endurance. Versatility

The hardest and longest kilometers in Zittau Mountains Nature Park

This trail is not for the faint-hearted. O-SEE Ultra Trail is the ultimate challenge, a tiny adventure and an awesome experience for all nature seekers. A must visit event located in the smallest of German low mountain ranges.

​Zittau Mountains Nature Park is embedded in the tripoint with Poland and the Czech Republic, and offers a variety of challenging trails with a stunning scenery in the backdrop. Breathtaking views and unforgettable moments are guaranteed as you ascend the sloping sandstone walls.

Start and finish are in the scenic village of Oybin, situated at the foot of the mountain of the same name. The ruins of a medieval monastery and many bizarrely shaped sandstone formations lend a wild romantic beauty to it. As one of the best known climbing spots in all of Zittau Mountains, and probably the most climbed as well, the Kelchstein graces the medals for the event.

A running event for ambitious athletes, passionate casual runners and for the whole family. The longest run is 100 kilometers, but there are also stunning trails for beginners and plenty of short distances for kids.
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O-SEE 100k
O-SEE 100k

18

OCT 2025
100.7 km

Distance

3,654 m

Elevation

4:00

Start

20h

Time limit

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O-SEE 75k
O-SEE 75k

18

OCT 2025
75.3 km

Distance

2,806 m

Elevation

6:00

Start

15h

Time limit

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O-SEE 50k
O-SEE 50k

18

OCT 2025
50.9 km

Distance

2,340 m

Elevation

8:00

Start

10h

Time limit

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O-SEE 25k
O-SEE 25k

18

OCT 2025
25.4 km

Distance

1,150 m

Elevation

10:30

Start

7h30

Time limit

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O-SEE 16k
O-SEE 16k

18

OCT 2025
16.9 km

Distance

586 m

Elevation

12:00

Start

6h

Time limit

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October 18, 2025

October 19, 2025

News & Tips

The heart of the Zittau Mountains Nature Park

Event Area

Working with the Best

Our partners

We would like to thank all of our sponsors who support us both financially and with their expertise.

We are all ears

Contact us

Do you have any questions about the O-SEE Ultra Trail or would you like to support us? We look forward to your message!

Thank you for your message. We will get in touch with you shortly.

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Address

O-SEE Sports e. V.

Theodor-Korselt-Straße 7

02763 Zittau

+49 (0)3583 5409876

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