Aurora watching in Þingvellir

Þingvellir, where the North American and Eurasian plates pull apart, is not just Iceland's most historic place — the site of the world's oldest parliament — it's also one of the most accessible dark-sky spots near Reykjavík for the northern lights.

Barely 45 minutes from the city yet ringed by the black walls of the rift valley and free of light pollution, it offers wide, dark horizons in every direction, so when a solar storm fires, the aurora can fill the sky and reflect in the still waters of Þingvallavatn below.

Watching green and violet curtains ripple over the rift, with the plates of two continents on either side and a thousand years of history underfoot, adds a rare depth to the spectacle. It's an easy, atmospheric place to chase the lights on a clear autumn or winter night.

An evening or night activity built around watching and waiting for the aurora under the dark skies of the rift valley, ideally on a clear, cold night.

Success depends on both solar activity and clear weather — cloud is the usual spoiler — so there's no guarantee on any given night, and displays range from a faint green arc to a full sky-filling storm.

Þingvellir's advantage is dark horizons and reflective water close to Reykjavík, making it a favourite for aurora tours and self-drivers alike. It asks little physically beyond standing outside in the cold for long stretches, so warm layers and patience are the main requirements.

Many combine it with the site's daytime history and the Golden Circle. On the right night, the lights over the rift are a magical, deeply Icelandic sight.

Come between September and April, when nights are dark enough, and favour clear, cold, settled spells; several nights beat one for beating the weather.

You can drive yourself the 45 minutes from Reykjavík to Þingvellir and find a dark spot away from any lights, or join a small-group aurora tour whose guide watches the forecasts and handles the driving.

Dress for serious cold in full layers, and bring a camera with manual settings and a tripod to capture the display and its reflections. Check the aurora forecast (the Kp index) and cloud maps, keep expectations realistic, and simply maximise your odds with dark, clear nights and patience.

Mind your footing near the rift's edges and water in the dark. It's one of the easiest quality aurora spots close to the capital.