Weymer Creek Park is known for its extensive cave system and unique karst features. A distinctive topography in which the landscape is largely shaped by the dissolving action of water on carbonate bedrock, usually limestone, dolomite or marble. They are of provincial and national significance.
Some of the longest and deepest caves in Canada can be found in this park, located southeast of Tahsis on northwestern Vancouver Island. These caves provide critical habitat for bat species, including the red-listed Keens long-eared myotis. The caves in the park are also significant for their paleontological values. Along with the significant cave and karst features, this park contains old-growth and second-growth forest.
Although there may be potential for caving opportunities in the future, this area is sensitive and use is not recommended until a management plan is complete.