You squeeze through the narrow opening of the mud form. The tapering walls are damp to your touch. The smell is cool and earthy.
You climb a steep ramp into the wooden box. Two can sit inside on benches protruding from opposite walls with knees touching, inhaling the odor of raw wood, leaning against the unfinished boards.
High, spongy steps of baled hay lead up into the third enclosure, a silent chamber of sweet-smelling grasses six feet above the gallery floor.
Three enclosures stand in the long gallery -- a conical form of rammed earth, a tall, narrow box of natural pine, and a pyramid of hay.