Big Lagoon in Francois Peron NP, Shark Bay: how Park Stay WA booking works, when sites sell out, and how to book a cancellation before the 180-day rush.
About Big Lagoon
Big Lagoon is the campground for people who want to wake up beside turquoise water in Shark Bay. It sits in low coastal scrub at the edge of a shallow lagoon in Francois Peron National Park, on the Peron Peninsula north of Denham, inside the Shark Bay World Heritage Area. The lagoon is made for paddling: you can swim and launch kayaks, canoes and SUPs from the campground. Motorised water sports are not allowed in the Big Lagoon Special Purpose Zone of Shark Bay Marine Park next to the camp, or in the Big Lagoon Sanctuary Zone to the north, which keeps things calm.
The park is jointly managed by DBCA and the Malgana Aboriginal Corporation, and Malgana people are the Traditional Owners. Beyond the lagoon, the rest of the park rewards a day of 4WD exploring, with the Peron Homestead Precinct, the clifftop lookouts at Skipjack Point and the picnic area at Cape Peron.
The campsites
Big Lagoon is a medium-size campground with 19 unpowered campsites, and they vary a lot, so read the site details and map carefully before you pick one:
- Seven sites have a raised grid platform for tents and swags, plus a sand space for your vehicle.
- Twelve sites have a sand surface: seven are reverse-in and five are drive-through.
Facilities are basic. There are no-flush pit toilets, including three accessible single cubicles, and the adjacent day-use area has sheltered gas barbecues, picnic tables and benches. There is no drinking water, no showers and no bins, so bring all your water and carry your rubbish out. Don't empty portable toilet waste into the pit toilets.
Campground rules worth knowing before you go:
- No campfires at any time.
- No dogs or other pets anywhere in the park.
- Generators are allowed between 8am and 9pm.
How booking works
Bookings are essential and are made online through Park Stay WA, DBCA's booking system, for one campsite only, which you must camp on yourself. Groups who can't fit on one site need separate bookings. You can book up to 180 days (about six months) ahead on a rolling basis, and right up to and including the day of arrival if a site is free and you can get a signal. Mobile coverage in this part of WA is patchy, so don't count on booking from the road.
Two fees apply. Camping is charged per person per night and paid by Mastercard or VISA when you book. A park entry fee applies per motor vehicle, which you can pay when booking, on arrival at the park, or cover with a park pass. Trailers and caravans don't attract the entry fee. There is no booking fee. The maximum stay is 14 nights if any night falls in WA public school holidays, otherwise 28 nights.
When it sells out
With fewer than 20 sites, Big Lagoon fills quickly in the busy seasons. WA school holidays are the crunch point: DBCA marks peak periods for Francois Peron National Park around them (for example, the July and September/October school holidays in 2026), and stricter cancellation conditions apply on those dates. The cooler months are popular too, since December to April can be extremely hot. Because the 180-day window rolls forward one day at a time, the first nights of a school holiday become bookable roughly six months out and are often taken soon after.
How to get a cancellation
DBCA lets you cancel or change a booking up to 11:59pm AWST the day before arrival, and the refund is the fee paid less a cancellation fee of one concession camper fee per date per campsite removed. There is no fee within the grace period (48 hours after booking when you book three or more days ahead), or when you remove dates more than 14 days out for peak dates, or more than 5 days out otherwise. Shortening or moving a stay counts as removing dates.
That is why sites tend to come back in waves: in the two days after people book, then just before the 14-day mark for school holiday dates and the 5-day mark the rest of the year, and in dribs and drabs until the night before. Checking Park Stay by hand at the right moment is mostly luck. Watch Big Lagoon on Aussie Camp Alerts and you'll get an alert when a night you want frees up.
Getting there
Big Lagoon is about 22km from Denham via Monkey Mia Road and Peron Road. Inside the park, access is for high-clearance 4WD vehicles with low-range gears, and small high-clearance trailers only. Reduce your tyre pressure for the deep, soft, single-lane sand tracks. The park is very remote, so carry plenty of water, food, fuel and first aid, and consider a personal locator beacon.
Nearby alternatives
If Big Lagoon is full, Edel Land National Park on the western side of Shark Bay is the next big adventure. Shelter Bay offers beach camping looking across to Dirk Hartog Island, and Steep Point puts you on the rocks at the most westerly point of mainland Australia. Both need a serious 4WD trip and book through Park Stay WA on the same rolling 180-day window.