The title compound, C15H16O2, has a dihedral angle of 19.10 (5)° between the mean planes of the two benzene rings. There is an intra-molecular O - H⋯O hydrogen bond and the C - C - C - C torsion angle across the bridge between the two rings is 173.13 (14)°. The mol-ecules form inter-molecular O - H⋯O hydrogen-bonded chains extending along the a axis. C - H⋯π contacts are also observed between mol-ecules within the chains.