Gaustatoppen Day Trip from Oslo: The Complete Guide

What Is Gaustatoppen?

Gaustatoppen is the highest peak in Telemark county, rising sharply above the surrounding plateau like a natural watchtower. The mountain has an almost perfect pyramidal shape when seen from the valley floor — dramatic and unmistakable.

Unlike many of Norway's most famous mountains, Gaustatoppen is achievable in a single day trip from Oslo. The drive takes about two hours each way through some of the most beautiful inland scenery in southern Norway — Telemark's green valleys, mirror-still lakes, and traditional timber farms.

The peak attracts around 30,000 visitors per year — relatively few compared to the most famous Norwegian attractions. On most days, especially midweek and outside peak summer, it feels remarkably uncrowded for a view this extraordinary.

Two Ways to Reach the Summit

Option 1: The Hiking Trail

The standard hiking route begins from the parking area at around 860 metres elevation and climbs approximately 1,020 metres to the summit. The trail is well-marked and takes most people around 1.5–2 hours to ascend, and a little less coming down.

The terrain is open and exposed — rocky paths, some boulder fields near the top, and views that expand with every step. Good hiking boots are recommended, and weather-appropriate clothing is essential even in summer, as conditions on the summit can be significantly colder and windier than in the valley.

The summit itself has a stone-walled shelter, a trig point, and 360-degree views that seem to go on forever on a clear day.

Option 2: The Gaustabanen Mountain Train

The Gaustabanen is one of the most unusual railway experiences in the world. Built in the 1950s inside the mountain for military purposes during the Cold War (Norway's NATO radio relay station is housed near the summit), the railway runs entirely underground — through a tunnel drilled at a steep angle into the mountain interior.

The journey takes about 20 minutes and brings passengers to a station at approximately 1,800 metres elevation — just 83 vertical metres below the summit. From there, a short walk leads to the top.

The train runs seasonally (typically June through early October) and tickets should be booked in advance during peak season. We can assist with booking train tickets if requested when you arrange your tour.

The Drive to Gaustatoppen: Through Telemark

The route from Oslo to Gaustatoppen passes through the heart of Telemark — a region that gave the world the telemark ski turn and remains one of Norway's most culturally distinctive areas. The drive is genuinely beautiful and forms a significant part of the experience.

On the way, we typically stop at a hidden hilltop viewpoint with views over a small city below — a surprise addition that gets almost universal positive reactions. Further on, there's an optional stop at a quiet local lake for a short walk and a moment of Norwegian stillness that feels miles from the tourist trail.

The approach to Gaustatoppen itself, as the mountain comes into view above the tree line, is one of those moments that stays with you. The scale becomes apparent gradually, and then suddenly.

What to Bring

• →Sturdy hiking boots: Even if you plan to take the train, the final stretch to the summit involves uneven rocky terrain.
• →Warm layers: Summit temperatures can be 10–15°C colder than in Oslo, even in summer. Wind is almost constant.
• →Rain gear: Norwegian weather is unpredictable. A light waterproof layer is always worth having.
• →Water and snacks: There is a basic café at the train station, but selection is limited. Pack your own for the hike.
• →Camera (and patience): The view rewards you when the clouds lift. Sometimes you wait 20 minutes; sometimes an hour. It's worth it.

Getting to Gaustatoppen from Oslo

There is no direct public transport connection between Oslo and Gaustatoppen. The nearest train station (Notodden) still requires a lengthy onward journey by local bus or taxi, and the last stretch of road to the parking area is not served by any regular public service.

Renting a car is one option — but Norwegian road tolls, unfamiliar roads, and the logistics of returning a car by a fixed deadline add friction to what should be a relaxed day out.

Our Gaustatoppen Mountain Adventure handles all of this: hotel pickup from Oslo, the full drive through Telemark, stops along the route, time at the summit, and return to Oslo — for 8,999 NOK per vehicle (up to 4 people). We can also arrange Gaustabanen train tickets if booked in advance.