The land around Clayoquot Sound includes vast coastal temperate rain forest, rivers, lakes, marine areas and beaches. It includes part of the Pacific Rim National Park Reserve and some of Strathcona Provincial Park. The total size of the Clayoquot Sound region, including both land and water, is . More than 200,000 hectares have been part of a multi-year study using Terrestrial Ecosystem Mapping (TEM) to identify areas prone to geologic and geomorphic hazards, in particular, landslides, soil erosion, and sedimentation, as well as identify and characterize terrain conditions associated with these hazards. The region contains the largest area of intact (unlogged) temperate rainforest left on Vancouver Island.