Cascumpec Bay is a relatively shallow coastal bay covering approximately 40 square kilometers on the northwest shore of Prince Edward Island. The bay's ecosystem is designated as an Important Bird Area, providing habitat for migrating Canada geese, nesting great blue herons, osprey, piping plovers, and common terns. The surrounding lands feature sand hills and, at the south end, extensive peat deposits known as the Black Banks. The bay is wide and scenic, offering a mix of open water and protected areas suitable for longer paddles. A notable route for a day trip involves launching from Northport Harbour to explore the upper bay and Oulton's Island, a 211-acre island once inhabited by Mi'kmaq people. Another option is to paddle into the Conway Narrows, a shallow passage where one can explore for hours. The area is also known for oyster aquaculture, being part of Canada's Oyster Coast. For access, one potential launch point is across from 14173 Cascumpec Road, and rentals are available in the Alberton area, specifically from Kildare Lodge. Paddlers should be aware of potential hazards, as evidenced by a reported kayak capsize incident in the bay, underscoring the need for appropriate safety precautions. The water is warm Atlantic water, typical of the Gulf of St. Lawrence.