The karst landscape around Melchsee-Frutt is one of the most impressive of its kind in Switzerland. Hidden beneath the surface is a widely ramified cave system with underground watercourses, deep shafts and fascinating stalactite formations that have been created over many thousands of years. Part of this mysterious underworld can be experienced as part of a guided tour - a natural adventure for groups who like to get off the beaten track.

Group experiences
Discover the perfect mix of nature experiences and team building with our tailor-made group experiences! Be it a leisurely llama trek through picturesque landscapes, an adventurous donkey trek or a challenging cave tour. Outventure's professionally guided team events are just the thing for anyone who wants to strengthen their teamwork and communication.
Below you will find all the activities and information you need for your unforgettable group experience.
Cave tours Melchsee-Frutt
The underworld of Melchsee-Frutt offers groups a fascinating insight into the hidden karst landscape beneath the mountains - with guided cave tours in summer and winter.

Summer guided tour: Schrattenhöhle & Schildloch
In summer, the whole variety of the "Melchsee-Frutt Underworld" opens up. In addition to the Schrattenhöhle, the Schildloch is also part of the offer. Both caves can be visited in their natural state and offer different, complementary experiences.
The Schrattenhöhle requires stamina and surefootedness, even in summer. It impresses with its varied structure with watercourses, narrow passages, gorges and spacious halls. In addition, the shield hole on the Bonistock offers a shorter, but very contrasting adventure: after a series of crawlways, the cave exit opens up high above the Tannensee lake, followed by an abseil section around 30 meters deep.
Procedure (summer)
- Individueller Treffpunkt auf Melchsee‑Frutt
- Einführung durch den Guide und Materialausgabe
- Gemeinsamer Zustieg zum jeweiligen Höhleneingang
- Begehung der Höhle(n) mit Kriech‑ und Kletterpassagen
- Rückwanderung und Abschluss der Tour
Special features summer
- Kombination aus klassischer Höhlentour und Abseilerlebnis
- Schildloch besonders geeignet für Gruppen, auch mit Jugendlichen
- Grössere inhaltliche Vielfalt innerhalb eines Angebots
Winter guided tour: Schrattenhöhle
The winter tour leads exclusively into the Schrattenhöhle, one of the longest karst caves in Switzerland. Access is via a winter-safe tunnel, from which the group penetrates deep into the cave system.
The walk is physically demanding and takes at least five hours. Narrow passages alternate with spacious halls, with watercourses and delicate stalactite formations along the way. The tour is suitable for sure-footed, enduring participants and is not recommended for children under the age of twelve.
Procedure (winter)
- Treffpunkt auf der Stöckalp oder auf Melchsee-Frutt
- Einführung durch den Guide und Ausgabe der Ausrüstung
- Gemeinsamer Zustieg zu Fuss oder mit Ski/Snowboard bis zum Stolleneingang in den Arviböden
- Geführte Begehung der Schrattenhöhle mit Kriech- und Kletterpassagen
- Rückweg ab Arviböden
Special features winter
- Wintersicherer Zugang
- Reines Höhlenerlebnis ohne Abseilpassagen
- Ideal für kleine Gruppen mit guter Kondition
Requirements & equipment
A good level of fitness, surefootedness and no claustrophobia are required. Sturdy, weatherproof shoes and clothing suitable for the weather are required. The necessary special equipment is provided, depending on the provider. The tours are suitable for groups and individuals.
Offers & booking
The cave tours of the "Unterwelt Melchsee-Frutt" are carried out by various specialized providers. We will be happy to put you in touch with our partners for a non-binding offer.
Outventure
Events are their strength. Full of ideas in the midst of nature - whether enjoyable, cozy, as team building or with thrills.
Events with pleasure
Kitchen adventure
The Adventure Kitchen is a gastronomic group experience in the great outdoors. Take a walk through the beautiful countryside, rest in the forest and make a fire. And then? Cooking together!
Action * | Relax ** | Team Spirit ***
Group size: minimum 6 people
Duration: approx. 3 hours
Season: all year round
Price: CHF 129/person
Wine safari
There are no limits to the wine safari. The wine safari provides insights into the art of winemaking with tastings of fine wines. We are happy to take you on a journey of the senses.
Action * | Relax *** | Team Spirit ***
Group size: minimum 10 people
Duration: approx. 2 hours
Season: summer
Price: CHF 89/person
Pleasure hike
On this leisurely hike through the largest moorland landscape in Switzerland, the local hiking guide will tell you all about the fauna and flora. During several breaks, you can enjoy culinary specialties from the region.
Action * | Relax ** | Team Spirit *
Group size: minimum 10 people
Duration: approx. 2 hours
Season: summer
Price: CHF 79/person
Events with team building
Color Bash
In the new creative workshop"Colour Bash", you will be equipped with spray cans to design a colorful mural according to your desired colors. At the end, the graphically processed canvas reveals your logo under the resulting art. You can then take the artwork home with you.
Action ** | Relax ** | Team Spirit ***
Group size: minimum 10 people
Duration: approx. 1 hour
Season: all year round
Price: CHF 149/person
Team games
Achieve top performance with our team games. In the middle of nature, we weld your employees together by solving creative, sporty, communicative and fun tasks.
Action ** | Relax * | Team Spirit ***
Group size: Minimum 10 people
Duration: approx. 1-2 hours (depending on the game)
Season: All year round
Price: CHF 79/person
Strengthen the team and promote trust with activities that can only be solved together.
Action ** | Relax * | Team Spirit ***
Group size: minimum 6 people
Duration: approx. 2 hours
Season: all year round
Price: CHF 119/person
Farmer Games
Experience fun and games at the Farmer's Olympics. Fun team games await you. Who is the fastest? Who can throw the farthest?
Action ** | Relax * | Team Spirit ***
Group size: minimum 6 people
Duration: approx. 2 hours
Season: all year round
Price: CHF 119/person
Puzzle fun
Solve various puzzles and find the way to the goal together. The aim is to promote cooperation and communication. The whole thing is combined with lots of fun in the great outdoors.
Action * | Relax *** | Team Spirit ***
Group size: minimum 10 people
Duration: approx. 1 hour
Season: all year round
Price: CHF 79/person
Events with a thrill
Climbing
A visit to the climbing garden is particularly fun as a group. When climbing, you learn to listen to each other, trust each other and conquer heights step by step. If the weather is bad, you can climb indoors.
Action *** | Relax * | Team Spirit ***
Group size: minimum 6 people
Duration: approx. 5 hours
Season: all year round
Price: CHF 179/person
Canyoning
Various jumps, cool water slides and abseiling sections that provide lots of fun in the beautiful "Chly Schliere" gorge in Obwalden. The action-packed canyoning tour unites the group as a team.
Action *** | Relax * | Team Spirit ***
Group size: minimum 5 people
Duration: approx. 3-5 hours (depending on the tour)
Season: spring & fall
Price: CHF 169/person
Cave tour
In one of the largest karst cave systems in Switzerland, you can dive underground together with our cave guide. During the cave tour, you will discover the exciting underworld together and thus promote team spirit.
Action ** | Relax * | Team Spirit ***
Group size: minimum 4 people
Duration: approx. 4 hours
Season: all year round
Price: CHF 189/person
Events with mindfulness
Yoga and meditation
Brings freshness to your seminar. Body and mind are refreshed so that you can continue working with concentration afterwards. Yoga and meditation strengthen, stretch and relax. Suitable for all levels.
Action * | Relax *** | Team Spirit ***
Group size: minimum 6 people
Duration: approx. 1 hour
Season: all year round
Price: CHF 50/person
Guided tour of the moorland
On a guided tour with Peter Lienert, long-time cantonal chief forester of Obwalden, you will learn many other exciting details about the diverse functions of the moor. He is happy to share his wealth of experience about the geology, geography, natural processes, history, land and people, animals and plants.
Donkey trekking
Have you always wanted to know whether donkeys are really stubborn? Then let us convince you otherwise.















