Via Alpina Red R138

The Via Alpina Red R138 is a demanding mountain stage of approximately 18 km in South Tyrol, Italy, gaining around 900 m of elevation as it crosses the Sesto Dolomites from Rifugio Zanotti to Strepeis. Part of the International Walking Network's flagship 2,600 km Red trail, this UNESCO World Heritage stage threads open ridgelines and traditional Ladin valleys through one of the most dramatically sculptured alpine landscapes on Earth.

About the Via Alpina Red R138

Stage R138 is one of 161 numbered stages that form the Via Alpina Red — the longest and most celebrated of five colour-coded trails in the Via Alpina network. Stretching roughly 2,600 km from Trieste on Italy's Adriatic coast to the Prince's Palace in Monaco, the Red trail crosses eight Alpine nations: Italy, Slovenia, Austria, Germany, Liechtenstein, Switzerland, France, and Monaco. Recognised as a flagship route of the International Walking Network (IWN), it stands among the world's most significant long-distance hiking projects.

R138 unfolds entirely within South Tyrol, Italy's bilingual German-Italian alpine province, deep in the Sesto Dolomites (Sextner Dolomiten). This subgroup of the Dolomites was awarded UNESCO World Heritage status in 2009 for its extraordinary geological formations — pale vertical towers of ancient coral reef limestone that erupt abruptly from green valley floors. The stage connects Rifugio Zanotti, a classic alpine refuge sitting above the valley at around 2,100 m, with the hamlet of Strepeis, descending through high pasture and larch forest into a quieter valley beyond the main tourist corridors.

The Via Alpina project was launched in 2000 through a partnership of eight Alpine nations with European Union support. Administration transferred from Grenoble to Liechtenstein in 2014. The official trail authority, via-alpina.org, maintains waymarking standards, stage data, and accommodation lists across all 161 Red stages. Waymarks are red-white-red diamonds bearing the distinctive "V" logo, appearing on rocks, trees, and signposts throughout the route.

For hikers planning a full end-to-end Red trail, stage R138 falls in the penultimate quarter of the Italian section — over 135 stages already completed, around 23 ahead as the trail continues north-west into Austria and eventually Switzerland and France before reaching Monaco. At this point the accumulated alpine mileage has sharpened legs and judgment alike, and the Dolomite landscape still delivers some of the network's most photogenic moments. If you are carrying a carefully chosen ultralight backpack, the technical terrain and cumulative elevation here reward every gram saved.

Route Overview & Stages

The table below contextualises R138 within its immediate surrounding stages on the Red trail's South Tyrol section. Stage distances and elevation figures are approximate; confirm current figures on the official via-alpina.org stage cards, as of 2026 these are updated each spring.

Highlights & Points of Interest

• Rifugio Carlo Zanotti — The stage departure point, a traditional South Tyrolean rifugio at around 2,100 m offering panoramic views east across the Sesto Dolomites. Hot meals, dormitory beds, and the unmistakable silhouettes of the pale limestone towers make it a memorable overnight stop before tackling R138.
• Tre Cime di Lavaredo — The three unmistakable 2,999 m spires are visible from several high points along R138. Arguably the most photographed rock formation in the entire Alps, the Tre Cime are the visual icon of the Dolomites and appear on the horizon as a constant reference point through much of this stage.
• High Alpine Ridgeline — The stage climbs onto open, rocky ground above 2,200 m with 360-degree views spanning multiple Dolomite groups — the Sexten Dolomites to the east, the Ampezzano group to the south, and the Carnic Alps to the north. On clear days the horizon reaches into Austria.
• Malga and Alm Pastures — Mid-stage the route descends through traditional alm (alpine pasture) country where dairy cattle graze through summer and shepherds still maintain seasonal huts. Fresh milk and local cheeses are sometimes sold at working malghe along the way.
• South Tyrol Larch Forest — The lower stretches of R138 pass through dense larch and Norway spruce forest, offering shade in summer heat and spectacular amber colour in September. The forest floor hosts gentian, arnica, and various alpine orchids in peak bloom through July.
• Strepeis Hamlet — The stage finish is a cluster of traditional households in a quiet lateral valley. The residents here are part of the Ladin-speaking community — one of three distinct cultural groups in South Tyrol alongside Italian and German-speaking populations — adding a unique cultural depth to the landscape.
• UNESCO Dolomites World Heritage Zone — The entire stage walks within a UNESCO-designated landscape, one of nine protected areas forming the Dolomites UNESCO World Heritage Site. The 2009 inscription specifically cited the outstanding geological formations and extraordinary natural beauty of this area.
• Via Alpina Red Waymarking — Throughout R138, red-white-red diamond blazes with the Via Alpina "V" logo mark every junction. European alpine signposts indicate distances in both kilometres and walking time — understanding both notations before you leave helps avoid navigation errors on the ridge.

Best Time to Hike the Via Alpina Red R138

The Sesto Dolomites span elevations from around 1,000 m to over 3,000 m, which defines a narrow hiking window. The high-alpine portions of R138 are reliably snow-free from mid-June through late September, with conditions peaking through summer. Here is a month-by-month breakdown:

June: Snow lingers on the upper ridge above 2,000 m through early June. By late June the trail is usually passable but streams run high from snowmelt. Alpine flowers — dwarf gentian, alpine rose, yellow arnica — are just emerging. Expect temperatures of 5–15°C at altitude and a moderate chance of afternoon thunderstorms.

July: Conditions improve rapidly. The trail is fully open, days are long (sunrise before 5:30 am), and temperatures are warm enough for comfortable walking in a light merino layer. July brings the first busy weekends as Italian summer holidays begin and rifugi fill quickly.

August — the single best month: August 2026 offers the most reliable combination of clear skies, dry paths, warm temperatures (18–24°C in valleys, 10–16°C on the ridge), and fully staffed rifugi. The Dolomites light — particularly the famous enrosadira phenomenon where limestone glows pink-orange at sunrise and sunset — is at its most intense in late August. Book rifugi at least 3–4 weeks ahead for August weekends.

September: Arguably the most atmospheric month. Crowds drop after Italian schools return, larch trees begin their golden turn, and the air is crisp. Rifugi start closing progressively from mid-September; check individual closure dates before booking a late-season itinerary.

October onwards: Snow becomes possible above 1,800 m from early October. The ridge sections of R138 are not recommended without mountaineering experience and crampons after the season closes.

Practical Information

Accommodation

The Via Alpina Red is a rifugio trail — each stage is designed to end at or near a mountain hut. Options on and around R138 include:

• Rifugio Carlo Zanotti — the stage start and natural overnight before R138. Dormitory beds cost approximately €35–45 per person; half-board (dinner, bed, breakfast) runs €65–80. Advance booking essential in July and August.
• Emergency bivouac huts — small unstaffed shelters along the ridgeline are open 24/7 but provide only basic cover. These are for emergencies, not planned overnight stops.
• Farm stays in Strepeis and nearby valley — Urlaub auf dem Bauernhof (farm holiday) accommodation at the stage end costs roughly €50–70 per person half-board. These fill weeks in advance during peak season.
• Wild camping: Strictly regulated in South Tyrol. One-night lightweight bivouacking above the treeline — arriving late, leaving early, leaving no trace — is tolerated in practice. Campfires are prohibited, and camping within the boundaries of the Tre Cime Dolomites Natural Park requires a permit from the park authority.

Getting There & Back

The nearest international airports are Innsbruck (INN), approximately 90 minutes north in Austria, and Venice Marco Polo (VCE), around 2.5 hours south. Both offer car hire and coach links into South Tyrol.

By public transport, the most practical approach uses the Dolomiti Bus network connecting Venice and Belluno to the Sexten Valley via Dobbiaco/Toblach. The nearest rail station is Dobbiaco (Toblach) on the Bolzano–Lienz line; seasonal buses from Dobbiaco serve Sesto/Sexten in roughly 20 minutes. Drivers can park at the Sesto village carpark (free) and reach trail access by taxi or on foot. Do not park at rifugio access roads — these lanes are reserved for goods deliveries.

Permits & Fees

No walking permit is required for the Via Alpina Red in South Tyrol. The trail crosses public rights of way managed by the provincial government. Key costs to budget for:

• Tre Cime di Lavaredo access road toll: Around €30 per vehicle applies to the private access road for the Auronzo refuge. This does not affect walkers approaching on foot via the Via Alpina route.
• CAI membership: Italian Alpine Club membership gives 30–50% discounts at most rifugi. Annual membership costs €55–75 depending on local section. Holders of equivalent DAV (German Alpine Club) or OeAV (Austrian Alpine Club) cards receive the same reciprocal benefit.
• Mountain rescue insurance: Helicopter evacuation in South Tyrol costs €3,000–10,000 per incident and is not publicly covered. Appropriate alpine rescue insurance — ÖAMTC, ERV, or equivalent — is strongly recommended before setting out.

Gear & Packing List

A Dolomites stage like R138 combines sustained alpine terrain with well-marked paths — no technical climbing gear is required, but the mountain environment demands solid preparation. Saving weight pays dividends over 18 km with 900 m of gain, and the right pack makes a significant difference on a multi-week Via Alpina through-hike. The full 2026 ultralight backpack comparison covers the current top options in detail.

• Backpack: For through-hiking the full Red trail, the Osprey Aether 65 is a feature-rich traditional option with excellent load transfer; the ZPacks Arc Haul Ultra 60L suits serious ultralight hikers; and the Hyperlite Mountain Gear 3400 Windrider offers a fully waterproof DCF construction that handles Dolomite rain showers without a pack cover. For R138 as a standalone day stage, the Deuter Aircontact Lite 45+10 is well-ventilated and reliable on rocky terrain.
• Footwear: Stiff-soled leather or synthetic hiking boots with ankle support and at least B1 crampon compatibility. Rocky Dolomite trail surfaces wear soft trail runners quickly and give poor ankle protection on loose scree descents.
• Layering system: Moisture-wicking base layer, insulating mid-layer (fleece or down gilet), and a waterproof hardshell. Afternoon thunderstorms are common in the Dolomites July through August — never leave the hardshell at the hut.
• Navigation: Download the via-alpina.org GPX track and the relevant Tabacco 1:25,000 sheets (maps 010 and 017 cover the Sesto Dolomites). Cell coverage is patchy above 2,000 m.
• Sun protection: SPF 50+ sunscreen, UV-blocking lip balm, and sunglasses rated to EN ISO 12312-1. Alpine UV intensity at 2,000–2,500 m is 25–50% higher than at sea level; burns happen faster than expected.
• Food and water: Carry 1.5–2 L capacity; reliable water sources appear at staffed rifugi and marked alpine springs. For a demanding alpine stage, calorie requirements run well above everyday levels — see how many calories you actually need hiking a full day for practical guidance.
• Emergency gear: First-aid kit, emergency bivouac bag, whistle, and a fully charged power bank. Mountain rescue in Italy: 118. European emergency number: 112.

Similar Trails You Might Like

Hikers drawn to Via Alpina Red R138 for its ridgeline character, rifugio infrastructure, and dramatic limestone scenery will find several other Italian long-distance routes worth exploring. The classic Alta Via system traverses the Dolomites on north-south axes, covering terrain that overlaps with and complements the Via Alpina's east-west corridor. For a radically different but equally striking mountain landscape, the Theth to Valbona trail in Albania offers wild, uncommercialised scenery at a fraction of the Dolomites cost.

• Alta Via n. 2 delle Dolomiti — 185 km (Italy) — The most technically demanding of the Alta Via routes, crossing the heart of the Dolomites from Bressanone to Feltre with multiple ferrata sections and high bivouac huts.
• Alta Via n. 6 delle Dolomiti — 180 km (Italy) — A quieter route through the western Dolomites and Brenta group, with fewer crowds and more exposure to isolated Ladin villages.
• Alta Via n. 6 delle Dolomiti — XI Tappa (Italy) — The eleventh stage of Alta Via 6, a self-contained day in the Brenta group for those who want a taste without committing to the full route.
• Alta Via n. 6 delle Dolomiti — X Tappa (Italy) — A high ridge traverse with extraordinary views west across the Adamello-Presanella glaciers.
• Alta Via n. 9 delle Dolomiti — 140 km (Italy) — The most recently waymarked Alta Via, traversing the Comelico and Carnia zones in quieter eastern Dolomites territory that overlaps geographically with the Via Alpina Red corridor.

Frequently Asked Questions

When is the best time to hike Via Alpina Red R138?

The hiking season runs from mid-June to late September, with August as the single best month. August offers the most reliable dry weather, fully staffed rifugi, long daylight hours, and the famous Dolomite enrosadira light at sunrise and sunset. September is quieter and offers golden larch colour but rifugi begin closing from mid-month, so check individual dates before booking.

How difficult is stage R138 of the Via Alpina Red?

R138 is rated demanding for experienced mountain hikers. The stage climbs roughly 900 m on rocky, occasionally exposed terrain with sections of uneven scree. No technical climbing or via ferrata equipment is required, but sure-footedness and appropriate alpine footwear are essential. Hikers without alpine experience should consider joining a guided group through a local South Tyrolean alpine club.

How far is Via Alpina Red R138 and how long does it take?

Stage R138 covers approximately 18 km from Rifugio Zanotti to Strepeis. Fit, experienced hikers complete it in 6–8 hours of net walking time, not counting breaks. The elevation profile — around 900 m gain and 1,000 m descent — means the descent leg is longer on the knees than the ascent. Start by 7:00 am to reach Strepeis well before afternoon thunderstorms typically build.

What accommodation is available along R138?

The stage relies on the rifugio system. Rifugio Zanotti at the start provides the natural overnight before R138, with half-board at €65–80 per person. At the stage end, private farm stays (Urlaub auf dem Bauernhof) around Strepeis cost roughly €50–70 per person. Both fill quickly in August — book at least four weeks ahead for weekend nights. Sesto village, about 8 km from the trailhead, has hotel options reachable by bus.

Do I need permits to hike R138?

No walking permit is required — the Via Alpina Red is a public trail in South Tyrol and access is free. However, mountain rescue insurance is strongly recommended: helicopter evacuation costs €3,000–10,000 and is not publicly covered. CAI membership (€55–75/year) gives 30–50% rifugio discounts and is excellent value for any multi-day Dolomites itinerary. No special entry permit is needed for the trail itself.