I'm usually not that big on the whole 'natural play spaces' thing because most of them look too much like workout equipment and don't have much room for imaginative play- but this one actually looks great!
A big sauna with a huge window looking out on the forest and the outdoor hot tub that's big enough for many people to warm up from the cold. This could also be used as a cold pool for dunking after sweating in the sauna.
Teds Woodworking - Unique Furniture Made From Tree Stumps And Logs Aside from their beauty, what makes these pieces of furniture astonishing is that it takes great woodworking skills and talent to make one! - Projects You Can Start Building Today