Dublin Mountains and Bohernabreena Reservoir Loop

This route is classified as difficult for touring cycling. While the immediate 9.5 km reservoir loop can be easier, this extended 42 km route includes significant climbs with an elevation gain of 509 meters, featuring sections with gradients up to 15-20%. Be prepared for challenging unpaved segments where you might need to dismount and push your bike.

The route features a mix of surfaces. You'll encounter paved roads, forest paths, and gravel sections. Some parts might be hard-packed earth. While much of the extended route is paved, be ready for unpaved and potentially difficult sections, especially if you venture off the main path. A robust hybrid or gravel bike with wider tires is recommended for comfort and suitability.

The route offers picturesque and dramatic scenery. You'll enjoy views of the two reservoirs (upper and lower lakes), surrounding forests, and the expansive Glenasmole Valley. Key highlights include the Bohernabreena Reservoir, Bohernabreena Waterworks, and a View of the Old Military Road. You'll also see picturesque arched bridges, the River Dodder, and distant ruins of St. Anne's Cemetery.

Given its 'difficult' classification, significant elevation gain, and mixed terrain, this specific 42 km touring cycling route is generally not recommended for beginners. It's better suited for experienced cyclists comfortable with long uphill sections and varied surfaces.

Yes, it's important to note that the Dublin Mountains Way, which traces parts of the reservoir's shoreline, explicitly prohibits cycling in those sections. Cyclists should be aware of signage and stick to designated cycling paths to avoid fines or conflicts.

The best time to cycle this route is typically during the spring, summer, and early autumn months (April to October). During these periods, you'll generally find more favorable weather conditions, longer daylight hours, and drier trails, making the mixed terrain more manageable. Winter can bring wet, muddy, and potentially icy conditions, increasing the difficulty.

While the Komoot route starts from Sandymount, there are parking options closer to the Dublin Mountains. For direct access to the reservoir area, look for designated parking spots near the Bohernabreena Waterworks or along the Old Military Road. Arriving early, especially on weekends, is advisable as parking can fill up quickly.

Yes, the route intersects with several other paths. You will find sections that overlap with the Dublin Mountains Way, the European long distance path E8 - part Ireland, and various segments of the Dodder Greenway and Grand Canal Greenway.

Dogs are generally permitted in the Dublin Mountains area, but they must be kept on a leash at all times, especially around the reservoirs and in areas with livestock or wildlife. The area is a Special Area of Conservation, so respecting wildlife and keeping the area clean is crucial.

While the immediate reservoir area is quite rural, you can find cafes and pubs in nearby villages and towns within the Dublin Mountains region. It's advisable to carry sufficient water and snacks for the duration of your ride, as facilities directly on the loop are limited. Plan your stops in advance if you need refreshments.

No, there are no specific permits or entrance fees required to cycle this route or access the general Dublin Mountains area. However, always respect private land, follow local regulations, and adhere to any 'no cycling' signs, particularly along sections of the Dublin Mountains Way bordering the reservoir.