Barrenjoey Lighthouse Whale Highway Lab

Barrenjoey Lighthouse is a wonderful final stop because it ties together several scientific ideas at once. Lighthouses are about optics and navigation: using a strong light and a high position to make coasts more readable. But the headland is also about animal movement. Migrating whales follow reliable coastal pathways shaped by geography, season and food availability.

For children, this stop makes the collection feel planetary. The science is no longer only about one rock pool or one dune. It is about direction, long journeys and the way humans and animals both use coasts as guides. Stand here long enough, and the whole Northern Beaches route starts to feel connected to something much larger than a day trip.