Krems to Mariazell: Epic Austrian Road Trip Guide

The road from Krems an der Donau to Mariazell is a journey through layered centuries. At Krems, the Wachau Valley’s terraced vineyards abruptly surrender to the rolling hills of the Waldviertel. The B37 highway, which becomes the B20 after Gföhl, slices through a landscape once ruled by the Celts and later by Babenberg dukes. Just before Mariazell, the road snakes up the Zellerrain Pass at 1,200 meters, a climb that tests engines and rewards with views of the Schneeberg.

This is not a direct highway sprint; it’s a 160-kilometer (100-mile) route that demands 2.5 to 3 hours of driving, depending on stops. Gas stations are sparse beyond the initial stretch—plan fuel at Krems or Melk. The drive exemplifies how to find the best stops and hidden gems between cities; for more tips, see how to find the best stops and hidden gems between cities.

Infrastructure Safety

The B37 has wide shoulders, reflective markers, and occasional rest areas. After Gföhl, the B20 narrows and lacks barriers along steep drops near the Zellerrain. Speed limits: 100 km/h on B37, reduced to 80 km/h or lower on curves. Wildlife warning: Deer and wild boar crossings between kilometers 45 and 75 (between Gföhl and Mitterbach).

• Emergency call boxes every 2 km on B37; sparse on B20.
• Toll-free; no vignette needed.
• Night driving: High beams recommended but watch for oncoming traffic.

Family and Child Suitability

Several stops cater to families. In Gföhl, the Waldviertel Railway Museum offers vintage train rides (weekends only). Near Rastenfeld, the “Ottenschlag Adventure Park” has a ropes course for kids 5+. In Mariazell, the Erlebnisbad (leisure pool) and a miniature train are popular.

• Ottenschlag Adventure Park: 10 km east of Gföhl, open May–Oct.
• Mariazell: “Erlebniswelt” offers indoor climbing and bouncy castles.
• Rest stops: Most Rastplatz (rest areas) have picnic tables and toilets.

Pet-Friendly Framework

Dogs are welcome at most outdoor stops but not inside restaurants or market halls. The forest trails near Gföhl and the Zellerrain have leash-free zones. Cafés with dog-friendly patios include Café Weinberg (Krems) and Gasthof Jagersberger (Mitterbach).

• Designated dog relief area at Rastplatz Gobelsburg (km 20).
• Pet-friendly accommodation in Mariazell: Hotel Ohrwall with dog beds.

Fatigue Management and Rest Zones

The long straight sections on B37 can induce monotony. Plan a break at Rastplatz Gobelsburg (km 20) or at the scenic viewpoint near Rastenfeld (km 45). For a nap, find a safe pull-off on the B20 between km 60 and 70 (forest clearings).

• Rastplatz Gobelsburg: Restrooms, picnic tables, shaded area.
• Viewpoint “Aussichtsturm Rastenfeld”: 360° view, parking for 10 cars.
• Safe overnight parking: Parkplatz am Erlaufsee (5 km from Mariazell) – free, illuminated.

Hidden Off-Route Spots

Just 5 minutes off the B20 (turn at the sign for “Rosenau”), the ruins of Rosenau Castle sit hidden in the forest. Another gem: the abandoned “Schloss Schiltern” near Krems, a 16th-century hunting lodge now overgrown, accessible via a short hike from the Dorfnerweg parking.

• Rosenau Castle ruins: GPS 48.512, 15.390; free entry.
• Schloss Schiltern: GPS 48.472, 15.630; ask landowners for permission.

Fuel and Route Economics

Driving from Krems to Mariazell involves significant elevation gain, especially the final 20 km up to the pilgrimage basilica. A mid-size car (e.g., VW Golf) will average 7–8 L/100 km. At €1.50/L, expect a fuel cost of approximately €17–€20 for the round trip of 320 km.

• Fuel stations in Krems (multiple brands), then next reliable station in Gföhl (35 km), then at Mitterbach (about 100 km).
• Last chance before the climb: Mitterbach (Shell, open 7–19).
• No gas stations on the Zellerrain Pass section; ensure a full tank.
• Consider filling up in St. Pölten if you take the western detour via A1.
• Electric vehicles: Chargers in Krems (several), Gföhl (1), and Mariazell (2).

Road Quality and Tolls

The B37 and B20 are well-maintained federal roads, fully paved, with occasional sharp bends after Gföhl. Tolls: No vignette needed on B-roads; the route is toll-free. However, the final stretch to Mariazell has a seasonal toll road alternative (the Mariazellerbahn parallel road is free).

• Surface condition: Excellent until Gföhl; good to fair on B20 with some potholes near forest sections.
• Night illumination: Only major intersections and small towns have lights; most of B20 is unlit after dusk.
• Winter driving: From November to March, expect snow; winter tires mandatory. Zellerrain Pass may require chains.

Geographical Shifts

The route traverses three distinct zones: the Danube lowlands (Krems, 200 m), the hilly Waldviertel (Gföhl, 600 m), and the Northern Limestone Alps (Mariazell, 870 m). The transition is abrupt after Gföhl, where fields give way to dense spruce forests.

• Wachau Valley: Terraced vineyards, apricot orchards, and the ruins of Dürnstein Castle.
• Waldviertel: Granite outcrops, moor landscapes, and the medieval village of Rastenfeld.
• Zellerrain Pass: Steep forested slopes, with emerging alpine meadows near the top.

UNESCO World Heritage Sites

The Wachau Valley (Krems to Melk) is a UNESCO Cultural Landscape. Although the direct route bypasses Melk, a short 15-minute detour west from Krems leads to Melk Abbey, a UNESCO site. No other UNESCO objects lie exactly on route, but the Semmering Railway (another UNESCO site) is a 1-hour detour south of Mariazell.

• Melk Abbey: Baroque masterpiece, 15 km from Krems via B1.
• Old Town Krems: Part of the Wachau area (UNESCO buffer zone).

Local Commerce and Culture

Farm stands along the B37 sell Wachau apricots (June–August), pumpkin seed oil, and Waldviertel poppy seed pastries. In Gföhl, stop at the Bauernmarkt (farmer’s market) on Saturdays. After passing through Mitterbach, look for “Most” (pear cider) at roadside huts.

• Wachau apricots: Apricot jam (Marillenmarmelade) available at most fruit stands.
• Poppy seed (Mohn) products: Noodles and strudel in Gföhl bakeries.
• Mariazell: Pilgrim souvenirs, including wooden figurines and local cheese from the Alpenhof dairy.