Driving through a roundabout in a tunnel in Norway

# The Bømlafjord Tunnel Roundabout: Norway's Underground Marvel

Tucked beneath the waters of western Norway, near Eidfjord in Vestland County, sits one of the world's most mind-bending driving experiences—a fully functional roundabout *inside* a subsea tunnel. Yes, you read that right.

This incredible feat of engineering lives within the Bømlafjord Tunnel (Bømlafjordtunnelen), part of the E39 highway. The tunnel connects the islands of Stord and Bømlo to the mainland and holds the distinction of being one of the world's deepest subsea tunnels. Navigating a roundabout while underwater? That's peak Norway right there.

**Getting There**

Simply follow the E39 highway and drive straight into the tunnel—just stick to the speed limits and road signs like you would anywhere else. The tunnel is well-lit and designed for regular highway traffic, so it's a straightforward drive despite its unusual feature.

**What to Know**

There's no entrance fee for the roundabout itself, though tolls may apply on the E39 depending on where you enter and exit. Vehicle type affects pricing, so check before you go.

If you're on a motorbike, you can safely snap a quick photo at the roundabout. Car and larger vehicle drivers should skip the photo stop and keep moving. And pro tip: make sure your vehicle is in good condition before tackling long subsea tunnels.

**The Wow Factor**

Here's the kicker—this isn't even Norway's only underground roundabout. The country boasts around 14 roundabouts tucked inside tunnels, with another nearby one just north across a bridge. It's a quirky testament to Scandinavian engineering creativity and the dramatic demands of fjord-region infrastructure.

For adventurous drivers, this is a genuinely unforgettable stop that perfectly captures the spirit of Norway's wild, ingenious landscape.