The glass cabins are the only structures on the island aside from a manor house and a smaller building called Palviljongen, which is where residents of the glass cabins can store possessions in private lockers, use the loo, or make a little food in the shared kitchen.
On arrival, visitors are also handed a map of the island, flashlight, eye mask, water bottle, cup, roll of toilet paper, and a sleeping bag, in case you feel like the glass is getting in the way of you looking at the stars. You also get access to rowboats, fishing rods, and a wood-burning sauna.
The whole enterprise has a similar feel those glass igloos in Finland or the clear bubbles you can sleep in to watch the Northern Lights in Iceland.
The push to get people close to nature with this project dovetails nicely with Sweden's "Freedom to Roam" law that allows anyone to camp, hike, bike, or otherwise access any of Sweden's public land at any time. (It's why the entire country was put on Airbnb earlier this year.)