The shell roof spans an area of 2500 sq.m. roofing over a bathing landscape. The shell hangs from five tree-like branched supports of different height which are grouped around a small, centrally situated patio. Like a hanging net the shell sweeps from support to support and down to the arched fringes. Saddle surfaces between the »trees« divide the overall space into individual sections. The branches of the supports are equipped with rings where the shell is hooked and overarched by the glass cupolas.