但 camping 或想乘 bus 进去就需预约. 2016 去-月就得预约,往往几小时就爆满. 令外你不用带 hiking poles, 里面拿地图Daily-Use Shelter有 ploes 可借,用完放回既可.
see https://reservation.pc.gc.ca/, left Day Use (Lake O'Hara Bus).