Family.Nest – Treehouse
Just a few steps lead up to your family home in the forest. 147 m² all to yourselves, with a separate children’s room, a cosy living room, a spacious terrace, a master bedroom with a freestanding whirlpool bath, and the hotel’s own woodland playground right next door. With a bit of luck, your children might spot the first forest creatures first thing in the morning, whilst a hearty breakfast is being prepared for you at the Hotel Gassner. Over 1,200 m² of wellness facilities, the National Park Summer Card, a delicious dinner and the best tips for a truly wonderful family holiday in the mountains are, of course, all included. Well, what do you think?
Included in your family holiday at the tree house:
Luxury living in the Gassner Tree House (147 m²), including a gourmet board package at the adjacent Hotel Gassner, featuring a generous breakfast buffet, a hiking snack or midday snack, a served 5-course dinner, and non-alcoholic drinks until 5 pm
Toddler Special: in Season A (22 May - 11 July 2026 and 19 September - (17 October 2026) Children aged 0-5 stay free of charge in the tree house
Wellness at the Crystal and Garden SPA, covering over 1,200 m² at the Hotel Gassner, featuring indoor and outdoor pools, an adults-only sauna area with five saunas, and plenty of cosy spots for personal retreat and relaxation
National Park Summer Card, offering free use of 5 mountain railways and a choice of over 60 varied activities every day (Krimml Waterfalls, the Slide Trail, the Mittersill National Park Centre, and much more)
The hotel’s own woodland playground, board games and card games, books for reading aloud
Baby equipment (cot, high chair, changing mat subject to availability)
Hiking service package and at least 5 guided hikes per week with our hiking experts - we take care of the planning and accompany you whatever the weather, even for just one person

Good reasons
for a family holiday in the tree house
Staying in a tree house is, in itself, a bit of an adventure for families. With windows facing in all directions, the little ones can give free rein to their natural curiosity at any time. Once you’ve had a hearty breakfast at the Hotel Gassner, you can take the cable car up the mountain and then head back down into the valley on mountain carts or along the slide trail. Themed trails take you on a journey to hunt for emeralds, enjoy Kaiserschmarrn or watch marmots in one of the picturesque national park valleys.
If the weather isn't on your side, you can snuggle up, splash about in the indoor pool, or take a trip to Mittersill to visit the National Park Centre. The hotel’s own woodland playground is sure to be the highlight of your holiday, and it won’t always be easy to get your kids to bed on time - our tip: there are books on the shelf for really lovely bedtime stories. Please help yourselves and let us know if there’s anything else we can do for you.


Dream Makers
The best deals? Only from us.
We are Stefanie, Sonja and Paul – the friendly voices on the phone, your personal pen pals, and idea generators on-site. Together, we are your dream makers and love to assist you personally. And here’s a little insider tip: the best deals are available only directly from us. So stop searching – just send us your holiday wishes and look forward to a tailor-made offer.
Your benefits:
- Personal advice and genuine hospitality
- Exclusive packages and holiday specials
- More availability than on booking platforms
- No hidden fees
- Hassle-free rebooking (subject to availability)
- Early check-in & wellness access on departure day (if available)
- A small farewell gift
