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Switzerland
Graubünden
Moësa
Mesocco

San Bernardino and Lago d'Isola Loop

Hard

5.0

(1)

9

hikers

San Bernardino and Lago d'Isola Loop

05:20

16.4km

640m

Hiking

This difficult 10.2-mile loop hike from San Bernardino to Pian San Giacomo offers stunning alpine scenery and mountain lakes.

Last updated: February 26, 2026

Tips

Includes a segment that may be dangerous

A part of this route comprises technical, difficult, or hazardous terrain. Specialist equipment and prior experience may be required.

After 15.6 km for 10 m

Waypoints

A

Start point

Parking

Get Directions

1

974 m

Lake San Bernardino

Highlight • Lake

Beautiful view of Lake San Bernardino.
You can go around the lake (6km) on foot, by MTB or gravel.

Translated by Google •

Tip by

2

2.10 km

Lake Isola

Highlight • Lake

You can walk around the path well on gravel roads.

Translated by Google •

Tip by

3

12.5 km

Fregeira Dedent

Highlight • Settlement

Fregeira Dedent is a small village located at 1614 m, not far from Lake Doss and surrounded by mountain pastures.

Translated by Google •

Tip by

4

15.0 km

Waterfalls and Wooden Bridges Near San Bernardino

Highlight (Segment) • Waterfall

Path in the woods that follows a small stream, with wooden bridges and small waterfalls.

Translated by Google •

Tip by

5

16.2 km

San Bernardino Village

Highlight • Settlement

The small holiday resort is located near the pass of the same name in the canton of Graubünden. The place is the starting point for numerous hikes. There are a …

Translated by Google •

Tip by

B

16.4 km

End point

Parking

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Way Types & Surfaces

Way Types

10.2 km

2.26 km

2.01 km

783 m

693 m

469 m

Surfaces

10.4 km

2.47 km

1.37 km

1.21 km

612 m

243 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (1,780 m)

Lowest point (1,170 m)

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Weather

Powered by Foreca

Today

Thursday 23 July

21°C

8°C

0 %

Additional weather tips

Max wind speed: 12.0 km/h

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Frequently Asked Questions

How difficult is the From San Bernardino to Pian San Giacomo – loop tour?

This loop tour is classified as difficult, requiring a very good level of fitness, sure-footedness, and sturdy hiking shoes. Some sections are technical or alpine, corresponding to an SAC (Swiss Alpine Club) difficulty level of 4-6. Prior alpine experience is recommended.

Is this trail suitable for beginners or families?

No, due to its difficult classification, significant elevation changes, and technical sections, this trail is not recommended for beginners or families with young children. It requires a good level of fitness and alpine experience.

Where does the From San Bernardino to Pian San Giacomo – loop tour start, and what are the parking options?

The loop tour conveniently starts near a parking lot in San Bernardino Village. San Bernardino itself is a notable small holiday resort and a good base for numerous hikes.

How can I get to the trailhead using public transport?

Public transport options are available to San Bernardino. For detailed timetables and connections, you can check local transport services or visit visit-moesano.ch for more information on the Val Mesolcina region.

What is the best time of year to hike this loop tour?

The best time to hike this trail is typically during the warmer months when snow has melted from higher elevations. Always check current weather and snow conditions before you go, as alpine sections can remain snow-covered well into early summer or see early autumn snowfalls.

Are dogs allowed on the From San Bernardino to Pian San Giacomo – loop tour?

While dogs are generally welcome on hiking trails in Switzerland, given the difficult and technical nature of this specific route, it's important to ensure your dog is fit for such a challenge. Always keep your dog on a leash, especially in alpine pastures where livestock may be present, and be mindful of other hikers and wildlife.

Do I need a permit or pay an entrance fee for this trail?

No, there are no specific permits or entrance fees required to hike the From San Bernardino to Pian San Giacomo – loop tour.

What can I see along the route?

The trail offers stunning alpine scenery, including typical alpine vegetation, fascinating panoramas, and two mountain lakes at Pass di Passit. You'll also pass by Lake San Bernardino, Lake Isola, and Waterfalls and Wooden Bridges Near San Bernardino. Portions of the trail traverse alpine pastures cared for by shepherds in summer.

What is the terrain like on the From San Bernardino to Pian San Giacomo – loop tour?

The terrain is varied and demanding. You will encounter unpaved paths (10.4 km), alpine sections (2.47 km), some asphalt (1.37 km), and gravel (612 m). Specific path types include mountain hiking paths, regular hiking paths, dirt roads, and forested/wild trails, with significant elevation changes.

Does the trail intersect other well-known paths?

Yes, the route also passes through sections of the Strada de Pignela, Gir d'Andrana, and the Graubünden Route, among others. It is also part of the broader "Strada Alta" route, connecting San Bernardino Hospice to Pian San Giacomo.

Are there any options to shorten the loop tour?

Yes, the route offers flexibility. You can shorten it by descending to San Bernardino Village from Confin Bass, or by heading to Pian San Giacomo via a forest road after Alp d'Arbea.

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