The views from the summit are spectacular, rewarding those who have climbed up from the Captain Cook Lookout on the Cape Byron Walking Track . Ribboning around the headland, the track dips and (mostly) soars its way to the lighthouse . Along the way, look out for dolphins (year-round) and migrating whales during their northern (June to July) and southern (September to November) migrations. You're also likely to encounter brush turkeys and wallabies. Allow about two hours for the entire 3.7km loop.
Inside the 1901 lighthouse there are maritime and nature displays. If you want to venture to the top you'll need to take one of the volunteer-run tours, which operate from around 10am to 3pm (gold-coin donation). There's also a cafe here and self-contained accommodation in the lighthouse-keeper's cottages.
You can drive right up to the lighthouse and pay $7 for the privilege of parking (or nothing at all if you chance upon a park in the small lot 300m below).