Challenging Disability Through Outdoor Adventure


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Calvert Kielder - SkyDen

Calvert Kielder. SkyDen.


SkyDen at Calvert Kielder is our amazing and unique Treehouse collaboration with TV’s George Clarke (Amazing Spaces).


SkyDen is most famous for its whole-opening roof which allows stargazing amongst the UK’s darkest skies from the comfort of your own bed. SkyDen is a pet-friendly, 4-berth indoor/outdoor fusion complete with balcony and wood-burning stove.


In The Beginning

Architect and TV presenter George Clarke launched this extraordinary treehouse project in December 2013 and it has been amazingly popular ever since. Created with designer William Hardie SkyDen features a spectacular opening roof revealing views of Europe’s largest working forest and the UK’s darkest skies.


Speaking about SkyDen George Clarke says, “We’ve never designed anything like it before. Its part treehouse, part art installation and can offer a unique experience on a unique site.”



Your SkyDen Experience

SkyDen consists:


The Square. This is your main living area on ground level opening onto a balcony. It is accessible for our disabled guests. This compact space then transforms into a dining area or a 2 single bed bedroom layout when cleverly designed furniture is folded down from the walls. This space also houses the small well-equipped kitchen with mini-oven, grill, 2 hotplates, toaster and mini fridge.


The Circle. This is your outdoor seating and dining area situated above a free-flowing stream and houses a small wood-burning stove. The Circle is accessible via a gently sloped walkway from the roadside.


The Triangle. This is your upper sleeping area accessed via external stairs.  The triangle is not accessible by anyone who cannot climb the external stairs from the walkway. A small 2 step ladder leads you to the sleeping platform, which can be set up as a double or 2 single beds. There is under-bed storage and of course, the roof opens to view the magnificent dark skies.


The Bathroom. This is your level entry wet room incorporating a shower, toilet and hand basin and is located just outside the square.


Sheets, blankets, duvets and towels are provided however we recommend bringing your own sleeping bags during the colder months or if you plan on sleeping outside in The Circle. There is electric lighting throughout SkyDen, though as you will be situated in an International Dark Skies Park, external lighting is limited. We recommend you bring a torch with you, especially if you plan to arrive after dark. There is room for a baby up to 2 years old as a fifth guest (no extra charge) and one pet (£50 extra charge).


IMPORTANT: No Smoking in Sky Den. There is a specifically located BBQ tray for use with disposable BBQs only. Centre facilities are available 1 March - 30 November.  Please check with us for availability outside of this period.


 Calvert Trust Kielder SkyDen

Booking SkyDen

SkyDen costs from £160 per night for up to 4 people, so that’s from just £40 per person per night.


SkyDen is very popular so you should aim to book a few weeks ahead of your preferred dates. Please contact SkyDen’s booking agent, Canopy and Stars, as soon as you can. Once booked, check-in is from 4 pm and check out is before 10 am.


If you find that SkyDen is not available for the dates you’d like this time around, please take a look at Calvert Kielder's Calvert Chalets or Executive Chalets.

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