🧭 Every country, and the places worth the trip NEW 26,489 places written across 243 countries 🎮 Guess the country As an Amazon Associate we earn from qualifying purchases
Meridiela.
Läs på svenskaThis page is also written in svenska.

Korallgrottan

The longest cave in Sweden, over six kilometres of limestone passage near the Norwegian border in Jamtland.

Saved in this browser only - no account, nothing sent anywhere. See your map

Typecave
WhereJamtland
Nearest cityGaddede about 40 km
Best seasonJuly and August
Time to allowHalf a day
Getting thereRoad towards the Norwegian border from Gaddede, then a walk; entry by guided tour only
EntryGuided tour, booked in advance

Korallgrottan was found in 1985 and the surveyed passage now runs to well over six kilometres, cut by water through limestone in the mountains near the Norwegian border - which makes it the longest cave in the country. It takes its name from coral-like calcite formations on the walls. Entry is by guided tour only, in small groups, with helmets and lamps provided; visitors crawl and squeeze through narrow sections and the trip is not suitable for anyone uneasy in confined space. Temperature underground is a few degrees above freezing year round. Tours run for a short summer season and must be booked ahead through the local operator.

What you actually see

  • Over six kilometres of surveyed passage - the longest in Sweden.
  • Coral-like calcite formations - which give the cave its name.
  • Crawls and narrow squeezes - the standard tour involves both.
  • A few degrees above freezing - underground, all year.

When to go

July and August, the tour season. Half a day.

Honest expectations

Tours only, booked ahead, in small numbers. Confined sections rule it out for many people. Clothing gets wet and dirty. It is genuinely remote - a long drive from anywhere.

Nearby

Gaddede is south-east; the Norwegian border is west.

What to pack for Korallgrottan

Chosen from what this place is for. Tap a kit for the full checklist.

All packing kits →

Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.

← More nature & outdoors in Sweden

One postcard a week.

A short Friday email: one place worth knowing about, the story behind it, and what is in season right now. No noise - leave whenever you like.