Milan's Best Walking Trails Rated by Distance and Difficulty: From Sempione to the Navigli

Milan has more green walking routes than most visitors — or residents — ever realise. The city's parks, canal-side paths and tree-lined viali add up to roughly 18 million square metres of public green space, according to the Comune di Milano's most recent urban greenery census. With July temperatures this year already nudging 34°C by midday, the smart money is on hitting the trails before 9 a.m. or after 7 p.m.

The timing matters. Health professionals at the Centro Sportivo Italiano (CSI), which runs fitness programming across Lombardy, have been pushing outdoor movement as a cornerstone of preventive wellness for the past three years — and summer 2026 is the first season they've published a formal difficulty-grading system for Milan's urban trails. It mirrors the approach long used in alpine trekking, applied to flat-city walking. Think of it as the Michelin Guide, but for your trainers.

The Easy End: Sempione and the Giardini Pubblici Loop

Start with Parco Sempione if you're new to outdoor fitness or returning after a break. The main perimeter loop around the park is 2.4 kilometres of gently graded gravel path, shaded by plane trees planted in the 1880s. The route passes the Arco della Pace at the north gate and circles back via the small lake near the Triennale di Milano. Flat, forgiving underfoot, suitable for all ages. CSI rates it a difficulty level 1 out of 5. Early risers will find dedicated joggers and Nordic walkers out from 6.30 a.m. on weekdays; weekends are busier but the park is large enough that it never feels crowded before 10 a.m.

For a modest step up — difficulty 2 — the Giardini Pubblici Indro Montanelli in the Porta Venezia neighbourhood offers a 1.8-kilometre inner circuit plus the option to extend along Corso Venezia toward Piazza San Babila. The combined out-and-back adds another kilometre. Surface conditions are better maintained than Sempione's outer paths, and there are water fountains — the city's free nasoni taps — at three points on the route.

Intermediate and Challenging: The Navigli Canal Network

The Naviglio Grande towpath between the Darsena in Porta Genova and the suburb of Corsico is the city's best intermediate trail. The one-way distance is 7.2 kilometres; the full return makes it a 14.4-kilometre walk that takes most people between two hours 45 minutes and three and a half hours at a brisk pace. CSI grades it difficulty 3. The path is unpaved in stretches past Naviglio Lombardo, and weekend cyclists share the route — walking on the left, eyes open.

The most demanding urban option, difficulty 4, is the full Alzaia Naviglio Pavese circuit starting from the Conchetta lock near Porta Lodovica and pushing south to Binasco, 16 kilometres one way. Few people attempt the return in a single session; most cycle back or use the regional Trenord rail service from Binasco station, with a ticket costing around €3.20 as of June 2026. The path surface alternates between compacted earth, cobblestone and asphalt — good ankle support is non-negotiable.

There is no difficulty 5 route within the city limits because Milan is, famously, flat. The CSI reserves that grade for trails beginning in the Parco delle Groane nature reserve, about 20 kilometres north of the centre by car or the S4 suburban rail line from Cadorna station.

One practical note on heat safety: the Associazione Medici dello Sport Lombardi recommends carrying at least 500ml of water per hour of walking in temperatures above 28°C, and recommends anyone starting a new exercise programme consult a medico di base — a GP — before tackling routes longer than five kilometres. The Mediterranean habit of treating walking as a social activity rather than a punishment helps too. Pick a trail, bring a friend, and finish at one of the aperitivo bars along the Naviglio Grande. That part requires no rating system at all.