Routes

Planner

Features

Updates

App

Get the komoot app

Join 45 million outdoor enthusiasts: navigate, discover, adventure.

4.8/5

Based on more than 300k user ratings

Download komoot now

Visit the App Store, Google Play or scan the QR code with your phone to download instantly.

Get the App

Get the komoot app

Join 45 million outdoor enthusiasts: navigate, discover, adventure.

4.8/5

Based on more than 300k user ratings

Download komoot now

Visit the App Store, Google Play or scan the QR code with your phone to download instantly.

Caves

Grotto and Bunker of the Refractaires

Caves

Grotto and Bunker of the Refractaires

Add your photos to this highlight

Drag a photo here or browse to upload.

Highlight • Cave

Grotto and Bunker of the Refractaires

People Who've Recommended This Place

Chris

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Request to follow

Romain Scheuer

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

MARIO CIPRIANO

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Patrick

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Request to follow

Steve Costantini

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Request to follow

Miguel Ibáñez

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Patrick

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Craig

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Georges

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Request to follow

FloFro

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Nadia

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Christiane

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Request to follow

Yves

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Ren

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Stiefer Stephane

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Chris

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Request to follow

Gerard Faber

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Request to follow

ChrBea

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Request to follow

Jéro

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Markus

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Request to follow

Lefeber Jerome

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Maria pinto

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Edgar und Alice

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

William T. Sherman

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Done

Recommended by 63 hikers out of 64

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Save

Location: Mersch Canton, Luxemburg

Everything You Need To Get Outside

Ready-Made Inspiration

Browse personalized adventures tailored to your favorite sport

A Better Planning Tool

Build your perfect outdoor experience using the world’s best outdoor tech

More Intuitive Navigation

Turn-by-turn navigation and offline maps keep your adventure on track

A Log of Every Adventure

Save every adventure and share your experiences with your friends

Save

See hikes here

Take Me There

Routes here

Best Hikes to Grotto and Bunker of the Refractaires

4.8

(57)

412

hikers

1. Pond with gazebo – Morrt Cave and Grotto loop from Lorentzweiler

13.5km

03:55

350m

Intermediate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Navigate

Send to Phone

Save

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy

Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.

Intermediate

Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.

Expert

More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.

Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.

Intermediate

4.8

(56)

401

hikers

2. Pond with gazebo – Morrt Cave and Grotto loop from Lintgen

11.8km

03:24

280m

Intermediate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Navigate

Send to Phone

Save

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy

Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.

Intermediate

Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.

Expert

More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.

Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.

Intermediate

5.0

(4)

hikers

3. Pond with gazebo – Fautelfiels Grotto and Chapel loop from Lintgen

19.2km

05:36

520m

Expert hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Navigate

Send to Phone

Save

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy

Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.

Intermediate

Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.

Expert

More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.

Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.

Expert

Tips

Ren

April 15, 2021

Deserves a little a stop

In the know? Log-in to add a tip for other adventurers!

Details

Informations

Elevation 390 m

Weather

Today

Saturday 25 October

9°C

3°C

100 %

If you start your activity now...

Max wind speed: 23.0 km/h

Change Starting Time

When do you want to start?

To ensure you can rely on your forecast, only the weather data for the next 46 hours is available.

Today

Save

Cancel

Most visited during

January

February

March

April

May

June

July

August

September

October

November

December

See hikes here

Take Me There

Location: Mersch Canton, Luxemburg

Other Popular Places to Check Out

Fautelfiels Grotto and Chapel

Meysembourg Castle

Fischbach Trail

Hunnebour Springs and Picnic Area

Bourglinster Castle

Charcoal Kiln and Hermit Caves

Rock Formation with Forest Staircase

Forest Path and Pond near Luxembourg

Pond Near Junglinster

Bunker of the Réfractaires

Skull Rock Formations near Fischbach

Kauzele Rock Passage

Download the app

Follow Us on Socials

Community guidelines

Vulnerability disclosure program

Imprint

Information for law enforcement

We value your privacy ⛰️

We use cookies that are essential for the app and website to function correctly or are used to produce aggregated statistics. With your consent, we and our third-party partners will also use tracking technologies to improve the in-app and navigation experience, and to provide you with personalized services and content. To give your consent, tap Accept all cookies. Alternatively, you can customize your privacy settings by tapping Customize Preferences, or by going to Cookie Preferences at any time. If you don’t want us to use non-technical tracking technologies, tap Refuse. For more information about how we process your personal data through cookies, take a look at our Privacy Policy.