The entire Cobourg Peninsula forms the Garig Gunak Barlu National Park, including the surrounding sea. In the turquoise water you'll likely see dolphins, turtles and threadfin salmon.
Two permits are required to visit the park: for a transit pass ($12.10 per vehicle) contact the Northern Land Council ; to stay overnight contact the Cobourg Peninsula Sanctuary & Marine Park Board . The overnight fee is $232.10 per vehicle, which covers up to five people for seven days and includes camping and transit passes.
On the shores of Port Essington are the stone ruins and headstones of Victoria settlement − Britain's 1838 attempt to establish a military outpost here.
At Algarlarlgarl (Black Point) there's a ranger station with a visitor information and cultural centre, and the Garig Store , which sells basic provisions, ice and camping gas.
There are two camping grounds in the park with shower, toilet, BBQs and limited bore water; generators are allowed in one area. Camping fees (per person per day $16.50) are covered by your vehicle permit, but if you fly in you'll have to pay them. Other accommodation is available in pricey fishing resorts.