As the Icelandic summer comes to a close, the team decided to get together to help you plan a late summer trip to our island. But finding the right September tours can be a matter of considering the ground beneath your feet.

We’ve selected only tours that we’d take ourselves (or that we’ve already taken), including excursions into volcanoes and ice caves. In other words, we’ve pinpointed some of our favourite subterranean and subaqueous adventures.

Þríhnúkagígur Volcano Tour | Go Inside a Magma Chamber

Fear not, the volcano Þríhnúkagígur has long been dormant, but it’s sleeping caverns are the perfect setting to learn about Iceland’s geothermal underbelly.

Descending a total of 198 metres over six minutes in a small metallic lift, you’ll be staggered by the chamber’s glorious metallic pallet of yellow and rust, its jagged rock formations, and enormous body.

I like this one the best because it gives me time to marvel at the world in a way I would’ve never expected, and in a way that’s respectful of the environment (look don’t touch).

There isn’t a remarkable difference in temperature in Iceland during the early autumn, but you’ll find yourself insulated from the elements in the belly of this giant. 

Katla Ice Cave Tour | Departure From Vík

Unlike those found beneath Vatnajökull glacier in the south of Iceland, the ice chambers beneath the volcano Katla don’t melt during the summer, meaning that they’re open from May until September.

Imagine walking among these sleeping ice giants, rapt by they’re shades of blue, glassy ice sculptures, sweeping crevasses, and bottomless sinkholes. While you’re under Katla, you’ll learn a thing or two about Icelandic folklore, and the nature spirits that haunt the area. 

Snorkelling Silfra Tour | Meet on Location

Silfra, a glacial spring, is famed for its crystal clear visibility and dramatic underwater scenery. But it’s also one of the only snorkelling and scuba diving locations on earth where it is possible to swim right in between the North American and Eurasian tectonic plates.

A dive in Silfra fissure, with an experienced guide and proper equipment, is an excursion into a silent world where your thoughts surround you and buoy you up. September tours of Iceland really can be as immersive as any other time of year.

Snaefellsnes National Park Day Tour

The entrance to the centre of the earth is approximately two hours drive from Iceland’s capital. The western peninsula of Snæfellsnes is one of Iceland’s most mysterious locations,  characterised by rough-cut shorelines and mossy magma fields, but its also home to its namesake, the domineering Snæfellsjökull Volcano.

There, you’ll get to watch the world from the top of Saxhóll crater, which has a perfect panoramic view of the glacier (and a nifty minimally invasive staircase to the top, thanks to Landslag Landscape Architects). The staircase was recently nominated for a prize—and it’s safe to mount even if you’re on a September tour of the island (when it can be a little windier).