Mária-út, M02-29 (Ercsi – Adony)

The Mária-út M02-29 is a 26-km point-to-point trail in Hungary, running from the Danube-side town of Ercsi southward to the historic settlement of Adony through the flat agricultural Mezőföld region. Gaining approximately 120 m of elevation, the route is rated easy and follows a centuries-old Marian pilgrimage corridor that forms part of the International Walking Network.

About the Mária-út, M02-29 (Ercsi – Adony)

The Mária-út M02-29 is one segment of Hungary's most celebrated long-distance pilgrimage network — the Mária-út (Mary's Way), a waymarked multi-route system managed by Mária Út Közhasznú Egyesület that threads Marian shrines across Central Europe. This 26-km section links Ercsi, a riverside town on the west bank of the Danube in Fejér County, with Adony to the south, passing through the villages of Beloiannisz and Iváncsa along the way.

The Mezőföld plateau — the low, fertile tablelands between the Danube and the Transdanubian Hills — defines this stretch. Expect wide skies, open field paths, shelterbelts of poplar and acacia, and occasional glimpses of the Danube floodplain to the east. The terrain is overwhelmingly flat, with only gentle undulations near Iváncsa and the vineyard slopes above Adony. The trail is well-signed throughout with the characteristic blue-and-white Mária-út pilgrim symbols, making navigation straightforward even for first-time visitors to Hungary.

Beyond its natural character, the M02-29 carries genuine cultural weight. The route is designated as part of the International Walking Network (IWN), placing it alongside major long-distance paths like the E3 and E7 European Walking Routes. Pilgrims have walked similar corridors through this region for centuries, bound for the great Marian shrines of Hungary — Máriapócs, Csíksomlyó, and Máriaremete among them. Hikers today share the path with cyclists, equestrians, and pilgrims completing extended multi-week journeys along the full Mária-út network.

At 26 km, the M02-29 is a solid full-day walk. Most hikers complete it in 6 to 7 hours of moving time, leaving room for stops at village chapels, wayside shrines, and a mid-route meal break. If you're planning a multi-day itinerary, the section connects southward to further Mária-út stages toward Dunaújváros and beyond. To plan your calorie intake for a long day on trail, see our guide on how many calories you need hiking a full day.

Route Overview & Stages

The M02-29 is waymarked in both directions. The description below follows the Ercsi to Adony direction, heading south from the Danube toward Adony's Roman heritage.

Total: 26 km / ~120 m elevation gain. The route is fully waymarked with Mária-út pilgrim symbols throughout. Water sources are available in each village; carry at least 1.5 litres between settlements in summer when the plateau offers no shade.

Highlights & Points of Interest

• Ercsi town centre — The trailhead town sits just back from the Danube's west bank. Its 18th-century Roman Catholic church and the remnants of a historic royal hunting estate give Ercsi more depth than its modest size suggests. The riverside promenade offers sweeping views across the floodplain before the path turns south toward open farmland.
• Mária-út wayside shrines — Small roadside kálvária (calvary crosses) and carved Madonna niches dot the route at regular intervals, marking centuries of devotional travel through this agricultural landscape. Each serves as a natural photo stop and informal waypoint for navigation.
• Beloiannisz village — One of Hungary's most unusual settlements, founded in 1950 by Greek communist refugees who fled the Greek Civil War. Named after resistance fighter Nikos Beloyannis, the village retains distinctive street names, a community house, and cultural traces that make it unlike anywhere else on the Hungarian plain.
• Iváncsa village church — The baroque-influenced parish church in Iváncsa is the natural mid-route landmark and a stamping station for Mária-út pilgrim passports. The village square offers a bench, a water tap, and a quiet place to rest before the final stretch to Adony.
• Adonyi-szőlők vineyard ridge — The final kilometres before Adony climb gently through old vineyard lanes, offering the widest views of the day across the Danube bend and the flat Mezőföld stretching west. In late September, the vines are heavy with harvest-ready fruit and the light turns golden across the rows.
• Vetus Salina Roman fort, Adony — Adony stands on the site of a Roman auxiliary fort that guarded the Pannonian Danube limes (imperial border). Excavated stone reliefs, inscriptions, and artefacts are held in the local museum, grounding the trail in a 2,000-year history of movement and settlement along this corridor.
• Mezőföld open landscape — The plateau itself rewards those who appreciate unconfined horizons. Skylarks rise from green wheat fields in spring, white storks patrol the pastures through June and July, and migratory raptors — including common buzzards and occasional red-footed falcons — sweep through in October.
• Danube floodplain views — At several points near Ercsi and again approaching Adony, the route opens eastward across the Danube's seasonal floodplain, a reminder that this corridor has guided travellers between river crossings for millennia before the first waymarker was ever planted.

Best Time to Hike the Mária-út, M02-29 (Ercsi – Adony)

The M02-29 can be walked year-round, but the flat Mezőföld terrain and the route's almost entirely exposed character make season selection meaningful.

Spring (April–May) is the finest window. Temperatures sit between 12 °C and 22 °C, wildflowers line the field margins, storks have returned from Africa, and the trail is neither muddy from snowmelt nor scorched by summer heat. April is particularly rewarding — the grain fields are still green, the roads quiet, and the light long and clear from 6 a.m. through 8 p.m.

Autumn (September–October) is the second-best period. The vineyard section above Adony is at its most atmospheric in mid-September when harvest is underway, and October brings migrating raptors over the plateau. As of 2026, extended warm autumns have made October an increasingly viable month on this section, with daytime temperatures often holding at 14–18 °C well into the third week.

Summer (June–August) is possible but demands early starts. By 10 a.m. the open plateau can reach 34–38 °C with minimal shade for stretches of 5 km or more. Start before 7 a.m. and carry a minimum of 2 litres of water if hiking in July or August.

Winter (November–March) is feasible but not recommended for most walkers. The path can become soft and muddy after prolonged rain, temperatures below 0 °C are common December through February, and reduced daylight turns the 26 km into a tight proposition.

Best single month: April. Cool temperatures, generous daylight, vibrant countryside, and low tourist pressure make it the optimal choice for the Mária-út M02-29.

Practical Information

Accommodation

The M02-29 is a single-day hike for most walkers, so overnight stays are typically booked at the trailhead or endpoint rather than mid-route.

In Ercsi, a handful of small guesthouses (panzió) offer basic double rooms from approximately €20–35 per night. Advance booking is recommended during the spring pilgrimage season of May and June, when the Mária-út network sees its highest footfall. In Adony, similar guesthouses and private rooms for rent (szoba kiadó) are available from around €20–30 per night. There are no trail huts or official pilgrim hostels on this specific segment, though the broader Mária-út network maintains stamping stations (bélyegzőhely) at local churches and community centres along the way, and hosts at these points often know of available rooms nearby.

Getting There & Back

Both Ercsi and Adony are served by the Budapest–Dunaújváros railway line (line 30a/8240). From Budapest Kelenföld station, direct trains reach Ercsi in approximately 55 minutes and Adony in around 70 minutes, with services running roughly every 1–2 hours throughout the day. For current timetables, check the MÁV-Csoport official timetable website. The linear, point-to-point format makes this an ideal train-assisted trail: take the early train to Ercsi, walk 26 km south to Adony, and return to Budapest by rail from Adony station.

By car, Ercsi is approximately 45 km south of Budapest via the M6 motorway (exit Ercsi/Rácalmás). Adony is a further 12 km south along Route 6. Parking is available at Ercsi train station; leave a second vehicle at Adony or rely on the train return. The nearest international airport is Budapest Ferenc Liszt International Airport (BUD), roughly 55 km north of Ercsi; connections by metro and suburban rail take approximately 90 minutes.

Permits & Fees

No permit is required to walk the M02-29. The trail crosses public paths and agricultural field margins that are freely accessible under Hungarian right-of-way provisions. There is no trail fee or advance registration requirement of any kind.

The Mária-út operates an optional pilgrim passport (zarándokútlevél) stamping system. Passports can be purchased and stamped at local churches, chapels, and community points along the route — details are published on the Mária-út official website. The passport is entirely voluntary and carries no legal or access function; it serves as a personal record of the journey.

Gear & Packing List

The M02-29 is a flat, well-surfaced trail with no technical terrain. That said, 26 km in exposed conditions demands thoughtful kit selection.

• Footwear: Trail-running shoes or low-cut hiking shoes are ideal for the firm, dry paths of the Mezőföld plateau. Waterproof boots are worth considering after prolonged autumn rain or for winter walks when the field margins can be soft.
• Backpack: A 20–35 L daypack is ample. For walkers chaining multiple Mária-út stages over several days, a lightweight option like the Fjällräven Abisko Hike 35 offers comfortable load management, while the ultralight Zpacks Arc Haul Ultra 50L suits those minimising carry weight on a multi-week pilgrimage. For a straightforward day hike, the Salomon ADV Skin 20 keeps things minimal without sacrificing hydration capacity. See our 2026 roundup of the best ultralight backpacks for a full tested comparison.
• Water: Carry at least 1.5 litres between villages; 2+ litres from June through August. Tap water is available in Beloiannisz and Iváncsa — check each village before leaving.
• Sun protection: A wide-brim hat, UV sunglasses, and SPF 30+ sunscreen are non-negotiable for the open plateau sections. Several stretches run 4–6 km with zero tree cover, fully exposed from mid-morning onward.
• Navigation: Download the GPX or KML file from the official Mária-út website before departure. Phone signal is generally reliable across this section, though a battery pack is worth carrying for full-day use.
• Food: There are no dedicated trailside cafés between the three villages. Pack a full day's worth of calories — our guide on how many calories you need on a full day's hike will help you plan precisely for 26 km of walking.
• Rain layer: A lightweight packable jacket covers the fast-building afternoon thunderstorms that are common over the flat plateau from May through August. Wind can pick up quickly across open farmland with no terrain shelter.

Similar Trails You Might Like

If the meditative flat-landscape walking of the Mária-út M02-29 appeals, several nearby routes share its Danubian character or step up to more demanding terrain in the same region:

• Camino Benedictus, Tihany–Mosonmagyaróvár–Rajka — Hungary's Benedictine pilgrimage trail connecting the abbey hill of Tihany with Pannonhalma and continuing northwest to the Slovak border. A longer, more varied multi-day pilgrimage alternative with stronger monastic atmosphere.
• ST307 Nagylók – Mezőfalva — An expert-rated section through the Mezőföld's southern reaches, passing agricultural landscapes comparable to the M02-29 but with rougher surface conditions and steeper undulations.
• ST311 Kalocsa – Bóni-fok — A Danube-adjacent expert route south of Adony, tracing the floodplain edge through Hungary's paprika heartland around historic Kalocsa.
• ST202a Čunovo – Lipót — Crosses from Slovakia into northwest Hungary along the Danube corridor, ideal for extending the IWN route northward into Central Europe.
• ST203a Lipót – Győr — Continues the northwest Hungarian Danube corridor into the city of Győr, connecting to the broader European walking route network and the E7 long-distance path.

For an entirely different European hiking experience, the Theth to Valbona hike in Albania offers dramatic mountain contrast — a tough Alpine crossing through the Accursed Mountains versus the M02-29's open, reflective plainland walking.

Frequently Asked Questions

When is the best time to hike the Mária-út M02-29?
April is the single best month. Temperatures range from 12–20 °C, the grain fields are green, and daylight hours are generous. Spring (April–May) and autumn (September–October) are both excellent windows. Avoid midday hiking in midsummer on this exposed plateau, where temperatures regularly exceed 35 °C with little shade across long sections of the route.

How difficult is the M02-29 section?
The trail is rated easy. The official Mária-út description classifies it as mostly flat and well-walkable terrain. There are no technical sections, scrambles, or significant climbs — total elevation gain across 26 km is approximately 120 m. It suits fit beginners and families with older children, though the full-day distance of 26 km requires a solid baseline of walking fitness.

How far should I expect to walk per day?
Most hikers complete the full 26 km in a single day, averaging 6–7 hours of moving time plus rest stops. The flat terrain allows a consistent pace of around 4–4.5 km per hour. Splitting over two days is possible with a stop in Iváncsa or Beloiannisz, though accommodation in those smaller villages is limited and requires advance arrangement with local hosts.

What accommodation is available on the route?
The main options are guesthouses (panzió) in Ercsi and Adony — both charge approximately €20–35 per night for a double room. Mid-route villages offer limited private rooms requiring advance booking. There are no official trail huts on this segment. The Mária-út pilgrim passport stamping stations at local churches can also direct walkers toward nearby hospitality and bed-and-breakfast options.

Are any permits or fees required to walk this trail?
No. The Mária-út M02-29 is freely accessible — there is no permit system, no trail fee, and no registration requirement. The optional pilgrim passport (zarándokútlevél) can be stamped at designated points along the route as a personal record of the journey, but it carries no legal or access function and is entirely a matter of personal choice.