In this Southborough, Massachusetts, country bathroom by Andrew and Yvonne Pojani, the design is all about the warm, reclaimed barn wood on the walls. I hate shower doors! I would rather have a curtain than a shower door!
wine barrel tub, natural carved chair, branch for holding robes and the natural branch light shade. I bet I could do a wood paneling thing around an already exiting bathtub with the cap to mimic the vibe but still have functional shape and size.
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.