Routes

Planner

Features

Updates

App

Get the App

Routes

Mountain biking trails

Around the Long lock – Long Castle loop from Ailly-sur-Somme

Routes

Mountain biking trails

Around the Long lock – Long Castle loop from Ailly-sur-Somme

Moderate

5.0

(4)

riders

Around the Long lock – Long Castle loop from Ailly-sur-Somme

02:48

50.9km

130m

Mountain biking

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: June 21, 2026

Tips

Includes a segment in which cycling is not permitted

After 7.40 km for 62 m

Waypoints

Start point

Train Station

Get Directions

211 m

Ailly-sur-Somme Lockhouse

Highlight • Other

The Ailly-sur-Somme Lock Keeper's House is a former lock keeper's house transformed into a tourist office which offers bicycle and kayak rental and the sale of local products. You can follow the Vallée de Somme cycle route which runs along the Ham canal in Saint-Valery-sur-Somme. Along the way, you'll enjoy views of the water, wildlife, and scenery. You can also stop at other Maisons de la Vallée, such as Long, Froissy or Lamotte-Brebière, where you will find more information, services and activities. The Ailly-sur-Somme Lock Keeper's House is a privileged place to discover the history and nature of the Somme valley.

Translated by Google •

Tip by

6.90 km

Picquigny castle

Highlight • Castle

magnificent castle on the top of Picquigny, with a small paved path to go around it and overlooking the church.

Translated by Google •

Tip by

28.2 km

Around the Long lock

Highlight • Structure

The private property of Long, open to visitors, is located in the heart of the Somme between Abbeville and Amiens. Classified as a historic monument, the building, dating from the first half of the 18th century, features architecture in the Louis XV style, made entirely of pink bricks and white stones.
The Château du Long is shaped like a rectangular central body with a mansard roof, inside which are very beautiful sculptures and paintings by Huet. The site is surrounded by a magnificent park of about twenty hectares, with French-style shrubs, greenhouses and a listed washhouse, an 18th-century dovecote, an orangery and a cooler, a six-hectare pond, outbuildings or a four-hectare wood. Very beautiful statues also mark the alleys that invite you to stroll. (France-Voyage)

Showing Translation

Tip by

28.4 km

Long Castle

Highlight • Castle

Château de Long is an 18th century castle located in the Somme valley. You can admire the architecture of pink bricks and white stones, the sculpted and painted decorations, the 20-hectare park with greenhouses and a wash house, and the 18th century dovecote. You can also discover the orangery, the ice house, the outbuildings, the 6 hectare pond and the 4 hectare wood. The castle is open Monday to Friday from 10:00 a.m. to 6:00 p.m. Château de Long is a private property which welcomes visitors wishing to discover its history and charm.

Translated by Google •

Tip by

29.1 km

Long Hydroelectric Power Plant

Highlight • Monument

Located on a branch of the Somme, the Long hydropower plant is one of the rare examples in France of small energy production units built before 1914. Classified as a historic monument in 1984.

Open from April 1st to October 31st.

Translated by Google •

Tip by