3.4
(35)
917
riders
83
rides
Road cycling around Deximumannu/Decimomannu, located in Sardinia, Italy, offers diverse terrain ranging from flat plains to undulating hills and challenging climbs. The region is characterized by the Riu Mannu river, historical landmarks like a Roman bridge, and proximity to natural parks such as Gutturu Mannu and Molentargius-Saline. Well-paved surfaces and varied elevation make it suitable for different fitness levels.
Last updated: July 7, 2026
2.0
(2)
43
riders
48.7km
01:57
130m
130m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
26
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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3.0
(1)
15
riders
57.8km
02:27
340m
340m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
23
riders
120km
05:44
1,640m
1,640m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
12
riders
84.3km
03:31
430m
430m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
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Beautiful mural depicting the wheat harvest in the fields.
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A small town in the metropolitan city of Cagliari, characterised by important pre-Nuragic and Nuragic archaeological sites (such as the nuraghes of Casteddu de Fanaris and Monte Idda, and the Domu de Janas of Sant’Iroxi).
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On the ruins of what were once Roman baths, traces of which can still be seen, a church now stands.
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The evocative Grotta di San Giovanni is a geological and archaeological treasure, as well as the longest vehicle-accessible cave in the world. The cave is accessible from two sides, but the ticket office and information point are located at the main, southern entrance. Entrance is permitted only during cave opening hours. Ticket prices vary depending on the type of visit. You can find all the latest information on the website: https://www.grottasangiovanni.com/.
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According to legend, the Acquafredda Castle was built by the Gherardesca family, Counts of Donoratico, when they acquired southeastern Sardinia. In fact, in 1257, the fortress came into the possession of Ugolino of Donoratico, lord of the Cagliarani territory, immortalized by Dante in Canto 23 of the Inferno. However, the castle is older, as it is already mentioned in a papal bull of 1215. After Ugolino's death (1288), it passed into the possession of Pisa, then to the Aragonese (1324), and subsequently to several feudal lords until it was redeemed by Victor Amadeus III (1785). From the top of a mountain, the castle dominates the territory of Siliqua, four kilometers away. Climbing its slopes, the view sweeps from the green valley of the Cixerri to Cagliari, from the Marmilla to the Iglesias area. At dawn and dusk, their shadows extend across the valley.
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The town's main church, with a modern appearance that barely catches the eye of travelers passing through Terraseo. There's a small fountain in the square for refilling your water.
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If you're coming from Iglesias towards Terraseo, be prepared. The next few kilometers will be scenic but challenging, with gradients sometimes exceeding 10%.
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The region offers diverse terrain, from flat plains suitable for easier rides to undulating hills and challenging climbs with significant elevation gain. You'll find well-paved surfaces throughout, making it suitable for various fitness levels. The landscape often changes from riverine areas along the Riu Mannu to more rugged, mountainous backdrops.
Yes, Decimomannu has several easy road cycling routes. For instance, the Siliqua Town Center – Church of Santa Maria, Uta loop from Decimomannu is an easy 48.6 km path with relatively flat sections, perfect for a relaxed ride through local towns.
For a more challenging experience, routes like the Castello di Acquafredda – View of Acquafredda Castle loop from Assemini Santa Lucia offer substantial elevation gain over 78.3 km. Another option is the Castello di Acquafredda – View of Acquafredda Castle loop from Villaspeciosa-Uta, which features nearly 800 meters of ascent over 89.6 km.
Road cycling routes often pass by the Riu Mannu river, including a historic Roman bridge. You can also explore areas near natural parks like Gutturu Mannu Regional Natural Park, known for its biodiversity, or Molentargius-Saline Regional Natural Park, famous for pink flamingos. For specific natural highlights, consider visiting Stagno di Stani Saliu or enjoying the SP1 Gravel Climb and Lake View.
Absolutely. The medieval Castello di Acquafredda near Siliqua is a prominent landmark often incorporated into cycling routes, offering panoramic views. Additionally, some routes, like the Decimoputzu – Santa Maria Roman Baths loop from Decimomannu, can lead you past historical points of interest such as the Santa Maria Roman Baths.
The region benefits from a mild climate for most of the year, making it suitable for road cycling across many seasons. Spring and autumn generally offer the most pleasant temperatures for longer rides, avoiding the peak heat of summer while still enjoying good weather.
While many routes cater to experienced cyclists, the region does offer shorter, easier options that can be suitable for families. Look for routes with minimal elevation gain and well-paved surfaces, such as the flatter sections found on the Siliqua Town Center – Church of Santa Maria, Uta loop from Decimomannu, which provides a gentle ride through local towns.
Road cycling routes are generally designed for speed and efficiency on paved roads, which may not be ideal or safe for dogs, especially on longer distances or routes with traffic. For activities with dogs, consider exploring trails within the nearby natural parks like Gutturu Mannu or Sulcis Park, which offer more suitable environments for pets.
Information on specific public transport options for cyclists carrying bikes in Decimomannu is limited. It's advisable to check local bus or train services directly for their bike carriage policies, as these can vary. Planning routes that start and end near your accommodation or a designated parking area is often the most straightforward approach.
Decimomannu and its surrounding towns offer various cafes, pubs, and restaurants where cyclists can refuel. Accommodation options, including hotels and guesthouses, are also available. It's recommended to check local listings in Decimomannu, Siliqua, or Assemini for establishments that cater to cyclists, such as those offering secure bike storage.
There are over 70 road cycling routes available around Decimomannu, catering to various skill levels. This includes 23 easy routes, 46 moderate routes, and 8 difficult routes, ensuring options for every cyclist.
The area is highly rated by the komoot community, with an average score of 3.6 stars from over 20 reviews. Cyclists often praise the diverse terrain, ranging from flat sections to challenging climbs, and the scenic beauty of the Sardinian landscape, including views of historical sites like Castello di Acquafredda and the proximity to natural parks.


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