The Barrenjoey Lighthouse was the third light constructed on this headland, completed in 1881. Designed by James Barnet, the NSW Colonial Architect, and built for a cost of $13,695 plus $2,210 for the lamp, the light is at an elevation of 113m and can be seen to a distance of 19 nautical miles (35 km) out to sea. There are tours from 11am to 3pm for $5 on Sundays featuring volunteer guides, excluding major public holidays and bad weather conditions.