The only way to visit the lighthouse is at low tide (you can see how high the water reaches by noticing the marine vegetation, the rust on the stairs & railings, and dark stains on the rocks). On most days, here at the Bay of Fundy, tides will vary about 30 to 40 feet from low mark to high. Wading or swimming are extremely dangerous due to swift currents and cold water temperatures. Woe to those who get stranded on the island when the tide rushes in. They will have to wait about 8 hours for the next chance to escape.