Nature Reserve Guide
The province of Siena is home to more than 10 nature reserves, protecting a wide range of Tuscan ecosystems. These protected areas are spread across the region, from the dense oak and chestnut forests along the Merse and Farma river valleys to the significant wetlands surrounding Lake Montepulciano in the Valdichiana. The varied terrain includes rolling hills, ancient forests, and unique geological formations, offering a cross-section of the area's natural biodiversity. These landscapes provide numerous opportunities for outdoor activities such…
1226
Routes
4.3
(3256)
Average rating
27K+
Explored with komoot
Last updated: April 23, 2026

4.4
(455)
6,308
hikers
Riserva Naturale Del Bosco Di Sant'Agnese offers diverse landscapes, from ancient cypress forests to grasslands, perfect for hiking, mountain biking, and road cycling.
Hiking
Running
Mountain biking
Gravel riding
Road cycling
Cycling

4.3
(689)
4,792
hikers
Riserva Naturale Di Castelvecchio is a nature reserve near San Gimignano, Italy, offering diverse landscapes for hiking, road cycling, and mountain biking.
Hiking
Running
Mountain biking
Gravel riding
Road cycling
Cycling

4.3
(327)
2,794
hikers
Riserva Naturale Basso Merse offers diverse routes for hiking, cycling, and jogging through oak forests and riverine paths in central Italy. This reserve features varied terrain for all interests.
Hiking
Running
Mountain biking
Gravel riding
Road cycling
Cycling

4.2
(443)
2,453
hikers
Riserva Naturale Alto Merse, southwest of Siena, Italy, offers diverse landscapes with forests and the Merse River, ideal for hiking and cycling routes.
Hiking
Running
Mountain biking
Gravel riding
Road cycling
Cycling

4.3
(238)
2,094
hikers
Riserva Naturale Il Bogatto is a nature reserve near Montalcino, Italy, protecting the Ombrone River habitat and offering diverse routes for hiking, cycling, and jogging.
Hiking
Running
Mountain biking
Gravel riding
Road cycling
Cycling

4.4
(238)
1,850
hikers
Riserva Naturale Lucciola Bella features unique geological formations and Tuscan landscapes, offering diverse routes for hiking, road cycling, and mountain biking.
Hiking
Running
Mountain biking
Gravel riding
Road cycling
Cycling

4.3
(189)
1,644
hikers
Riserva Naturale Pietraporciana offers panoramic views between Val d'Orcia and Valdichiana, with diverse landscapes for road cycling, hiking, and gravel biking routes.
Hiking
Running
Mountain biking
Gravel riding
Road cycling
Cycling

4.4
(204)
1,579
hikers
Riserva Naturale Crete Dell'Orcia is a nature reserve in Tuscany's Val d'Orcia, offering diverse terrain for hiking, cycling, and more.
Hiking
Running
Mountain biking
Gravel riding
Road cycling
Cycling

4.5
(157)
1,419
hikers
Riserva Naturale Pigelleto offers diverse landscapes for hiking, cycling, and jogging through dense woodlands and rolling hills, featuring unique silver fir forests.
Hiking
Running
Mountain biking
Gravel riding
Road cycling
Cycling

4.2
(195)
1,237
hikers
Riserva Naturale Lago di Montepulciano protects a significant wetland in Tuscany, offering diverse routes for road cycling, hiking, and gravel biking.
Hiking
Running
Mountain biking
Gravel riding
Road cycling
Cycling

4.7
(121)
974
hikers
Riserva Naturale Cornate E Fosini offers diverse terrain for mountain biking, cycling, and hiking in the Tuscan Maremma, with panoramic views from its highest peak.
Hiking
Running
Mountain biking
Gravel riding
Road cycling
Cycling
The nature reserves in Siena are protected areas that conserve a range of Tuscan ecosystems, from dense forests and river valleys to wetlands. This collection aggregates more than 10 reserves, including the Riserva Naturale Alto Merse and Riserva Naturale Lago di Montepulciano. These areas offer opportunities for outdoor activities like hiking, cycling, and mountain biking.
The province of Siena contains 14 designated nature reserves. This page features 11 of these reserves, providing access to over 1,100 routes for various outdoor sports shared by the komoot community.
The primary activities in Siena's nature reserves are hiking, cycling, and mountain biking. Across the reserves, there are more than 1,100 documented routes, with options for gravel biking and trail running also available in many areas.
Based on visitor numbers from the komoot community, the most popular reserves include Riserva Naturale Del Bosco Di Sant'Agnese in the Chianti hills, Riserva Naturale Di Castelvecchio near San Gimignano, and Riserva Naturale Alto Merse along the Merse river.
Riserva Naturale Alto Merse is known for its extensive oak and chestnut forests and paths along the Merse River. It offers a variety of trails, with route data showing approximately 48 hiking trails and 17 mountain bike trails available for exploration.
The Riserva Naturale Basso Merse features a landscape of wide clearings, wetlands, and oak forests. This environment provides habitat for various bird species and features unique serpentinite rock formations. The reserve contains routes for hiking, cycling, and jogging.
Yes, the Riserva Naturale Lago di Montepulciano is a key location for birdwatching. This wetland habitat, with its shallow lake and reed beds, is home to nearly 200 bird species. The reserve offers flat paths suitable for walking and cycling, such as the 'Sentiero della Bonifica'.
Yes, several reserves offer routes suitable for families. The Riserva Naturale Lago di Montepulciano has flat pedestrian and cycle paths ideal for all ages. Other reserves also contain easier, well-marked trails, and a dedicated collection of family-friendly hikes is available for the Siena region.
The terrain is highly varied across the different reserves. It ranges from the rolling hills and ancient cypress forests of Riserva Naturale Del Bosco Di Sant'Agnese to the riverine paths and dense woods of the Merse valley reserves. Other areas, like Riserva Naturale Crete Dell'Orcia, feature the distinctive clay hills and gullies of the Val d'Orcia.
Spring and autumn are generally considered ideal times to visit for hiking and cycling, offering mild temperatures and vibrant landscapes. Summer can be very hot, but the clear waters of the Farma stream in the Val di Farma Nature Reserve offer opportunities for swimming. Winter is cooler but still suitable for many walking routes.
Some reserves, particularly those closer to Siena like the Montecellesi Animal Populating Reserve, can be reached by public transport or bicycle from the city. For more remote reserves, access may be limited, but specific guides are available for hikes starting from bus stations in the Siena area.

