Tour de Onni
29.5miLength
3,097ftElevation gain
12–13hrEstimated time
Point to point
Enjoy this 29.5-mile point-to-point trail near Diekholzen, Lower Saxony. Generally considered a challenging route, it takes an average of 11 h 48 min to complete. This is a popular trail for backpacking, hiking, and bike touring, but you can still enjoy some solitude during quieter times of day.
The 7 highest mountains of Külfs - Diekholzen - Eime - Külf - Gronau - Nordstemmen - Ahrbergen can be admired on this route.
Top sights
Burg Poppenburg
Castle
Cölleturm
Viewpoint
Engelbrechtenscher Hof
Building
Leine - Westarm Gronau
River
Despe
River
Großer Kiessee Barnten
Pond
Stukenberg
Peak
Kleiner Kiessee Barnten
Pond
Altes Wiegehaus
Building
Popular times
When is the trail busiest?
Beat the crowds with weekly and monthly trail activity data from our community
Adventure starts in the app
Offline maps, navigation, and conditions — all in one place
Top trails nearby
Frequently asked questions
What is the expected weather this week for Tour de Onni?
Expected weather for Tour de Onni for the next 5 days is:
- Sun, September 20 - 63 degrees/clear
- Mon, September 21 - 63 degrees/drizzle
- Tue, September 22 - 67 degrees/foggy
- Wed, September 23 - 60 degrees/clear
- Thu, September 24 - 64 degrees/clear
Where is Tour de Onni located?
Tour de Onni is a trail located in Diekholzen, Lower Saxony, Germany.
How hard is Tour de Onni?
Tour de Onni is considered a hard hike that covers 29.5 mi, with an elevation gain of 3,097 ft. It takes about 12–13 hr to complete. Hard trails usually cover longer distances, and may have long or steep climbs or more difficult obstacles.
What is the elevation gain for Tour de Onni?
Tour de Onni is considered a hard hike that covers 29.5 mi, with an elevation gain of 3,097 ft. It takes about 12–13 hr to complete. Hard trails usually cover longer distances, and may have long or steep climbs or more difficult obstacles.
Is Tour de Onni a point to point trail?
Tour de Onni is a point to point trail that covers 29.5 mi, with an elevation gain of 3,097 ft. It takes about 12–13 hr to complete. Point-to-point routes have a different starting point and endpoint. The length of the trail refers to one-way travel on this route. Don't forget to plan for transportation when exploring point-to-point routes!
How long is Tour de Onni?
Tour de Onni is a point to point trail that covers 29.5 mi, with an elevation gain of 3,097 ft. It takes about 12–13 hr to complete. Point-to-point routes have a different starting point and endpoint. The length of the trail refers to one-way travel on this route. Don't forget to plan for transportation when exploring point-to-point routes!
Are dogs allowed on Tour de Onni?
Dogs may be allowed on Tour de Onni. Be sure to check regulations before heading out.
Are there scenic views at Tour de Onni?
Yes, Cölleturm is located on Tour de Onni.
Are there rivers at Tour de Onni?
Yes, Tour de Onni is near Leine - Westarm Gronau and Despe.
Is backpacking allowed at Tour de Onni?
Backpacking is allowed on Tour de Onni. Backpacking trails are typically longer and are often point-to-point trails. Camping accommodations vary, and can include campsites, dispersed camping, huts, or in-town accommodations. You should always double check if a permit is required.
Is Tour de Onni paved?
Yes, according to trailgoers, Tour de Onni is partially paved.
Are there forests at Tour de Onni?
Yes, Tour de Onni is a forest trail.
Last updated on September 20, 2026 at 3:20 am GMT+0