This private South Coast tour covers the full run from Reykjavík to Jökulsárlón in a single long day, with the vehicle and guide reserved for your group alone. After an early pickup from your accommodation, the drive follows the Ring Road east, stopping at the coast's best-known sights along the way.

The first stop is Seljalandsfoss, one of Iceland's most visited waterfalls and the only one you can walk behind for a view of the falling water from the other side. Further along is Skógafoss, another major waterfall marking a stretch of coastline the sea has since retreated from.

The route passes close to two of Iceland's most active volcanoes: Hekla, once called the "gateway to hell" in medieval times, and Eyjafjallajökull, whose 2010 eruption grounded flights across Europe. Next comes Reynisfjara, a black sand beach lined with basalt columns and sea stacks, near the village of Vík.

From there the landscape keeps shifting, moss-covered lava fields, black sand plains, sea cliffs and glacial rivers, until you reach Jökulsárlón itself. Iceland's deepest lake, it's filled with icebergs drifting from the glacier toward the sea, some washing up on the nearby black sand known as Diamond Beach. You'll have time to explore the lagoon at your own pace before the drive back to Reykjavík. An optional boat tour on the lagoon runs from May to October, weather permitting, and is not included in the tour price.

Note: this is a long day with limited time at each stop. The itinerary depends on weather and road conditions, and in winter some sights may be seen at dusk or in the dark.