Della Falls, series of three cascades from Della Lake to the valley of Drinkwater Creek on Vancouver Island, B.C., Canada. They are located approximately 37 miles (60 km) northwest of the mill town of Port Alberni and about the same distance southwest of the town of Courtenay.
With a nearly vertical drop of 1,445 feet (440 meters), Della Falls constitute the highest waterfalls in Canada. Named for the wife of Joe Drinkwater, a trapper and prospector who first visited the falls in 1899, Della Falls are formed by the glacier-fed lake. At an elevation of about 3,545 feet (1,080 meters), Della Lake lies deep within the mountainous Strathcona Provincial Park. The falls are surrounded by Big Interior Mountain (6,103 feet [1,860 meters]), Mount Rosseau (6,437 feet [1,962 meters]), Mount Septimus (6,398 feet [1,950 meters]), and Nine Peaks (6,044 feet [1,842 meters])—four of the highest peaks on the island.