Due to seasonal extremes in temperature and the forces of gravity, large blocks of rock have broken away from the main face of the Niagara Escarpment. The gradual shifting downwards of these huge blocks has produced the crevice caves of the Collingwood-Blue Mountain area. The park's range of microclimates supports interesting cliff face vegetation communities. The Duncan Escarpment is part of the Niagara Escarpment Parks System and the Niagara Biosphere Reserve. There are no visitor facilities. The Bruce Trail provides good hiking and nature appreciation opportunities. Visitors are asked to remember that the natural features are vulnerable and easily damaged. Camping, rock climbing, off road vehicular traffic and hunting are not permitted in this nature reserve.