Have you ever dreamed of walking on water in the middle of the Atlantic? This unique experience awaits you on the Banc d’Arguin! This stretch of sand rises up against the Dune du Pilat, changing shape every day as Cap Ferret looks on. Listed as a national nature reserve since 1972, this site attracts migratory birds by the thousands, while the waves lap at the sand. For your next camping vacation in Arcachon, this moving land is a must-see. Let’s discover the Banc d’Arguin!

Banc d’Arguin in brief

• Natural sandbank facing the Dune du Pilat.
• A shifting landscape shaped by tides and currents.
• A protected nature reserve at the gateway to the Arcachon Basin, to be discovered with respect for its biodiversity.
• Wild beaches with clear waters, accessible by boat.
• Authorized activities: swimming, relaxing, responsible picnicking and birdwatching.

A landscape in perpetual motion: geology and currents

Movement defines the Banc d’Arguin! Indeed, this relief is never still, as the forces of the Atlantic and the Arcachon Basin constantly clash.

Sand drifts down from the north of Aquitaine. This flow transports colossal volumes of sediment every year. Once it reaches Cap Ferret, this sand meets the currents of the passes and accumulates to form this immense shoal. In this way, the Banc d’Arguin absorbs a significant proportion of wave energy, protecting the coastline. Without it, the cape would suffer far more violent erosion.

Our advice: observe the Banc d’Arguin from the top of the Dune du Pilat! The aerial view reveals the sandbanks beneath the turquoise water. It’s the best way to understand the force of the currents. Don’t miss this spectacle when the tide is high!

A sanctuary of biodiversity: focus on the nature reserve

Don’t think of the Banc d’Arguin as just a pile of sand – think of it as a natural theater at the entrance to the Arcachon Basin! Take advantage of your stay to observe hundreds of species in this Natura 2000 listed national reserve. Admire the ballet of migratory birds that make this shoal their favorite stopover. Listen to the calls of the colonies of terns nesting here and enjoy the spectacle of wild Aquitaine!

Respect the fragile flora of the sands

When walking on the Banc d’Arguin, be vigilant and respectful of the plants that brave the sea spray.

• Thyme-leaved toadflax: this rare little flower blooms in bare sand.
• Oyat: this hardy plant is indispensable for fixing the mobile dunes you’re treading.
• Eelgrass: these vast underwater meadows feed geese below the surface.

Become a responsible observer

Use your binoculars to spot the oystercatcher without disturbing it. This bright red-billed wader is one of the site’s occupants.

By respecting the quiet zones, you are actively contributing to the survival of these fragile species. Keep your distance so you can enjoy their presence without disturbing their natural cycle, and remember that it’s the pond that gives them shelter and food.

Visit the Banc d’Arguin: activities and reserve rules

The Banc d’Arguin has to be earned! Strict regulations govern the use of this protected area.

Authorized activities for getting away from it all

Stay within the authorized zones and enjoy a complete change of scenery thanks to activities such as :

• Swimming and relaxation: enjoy the clear waters on beaches open to the public.
• Responsible picnics: authorized, provided you leave with all your waste.
• Birdwatching: admire the birds without disturbing them.

Did you know? Can you sometimes spot harbor seals near the Banc d’Arguin? They sometimes appear near the passes to rest. Keep your distance so as not to frighten them during their siesta in the sun!

Prohibitions to preserve the balance of the reserve

To guarantee the tranquillity of the species on the Banc d’Arguin, certain behaviours are prohibited:

• Pets: dogs are strictly forbidden, even on a leash.
• Integral protection zones: it is forbidden to enter marked nesting areas.
• Bivouacs and camping: spending the night on the bench is totally forbidden in order to protect nocturnal fauna.

Practical guide: prepare your expedition

A successful day on the Banc d’Arguin requires rigorous organization. Here are the essentials for a smooth crossing.

How do I get there?

During your stay at the Fontaine Vieille campsite, departure is mainly from Cap Ferret. Once at the pier, there are several options:

• Sea shuttles: regular service in summer.
• Water cabs: ideal for personalized, flexible crossings.
• Local boaters: guided stopovers offered by professionals.

Good to know: sea shuttles are strictly weather-dependent. In the event of heavy swell in the passes, departures may be cancelled. Always check conditions on the morning of your departure.

Essential equipment

The Banc d’Arguin is a wilderness with no shady areas or drinking water. Remember to :

• Hydration: make sure you have enough water for the day.
• Sun protection: sun cream, sunglasses and a hat are essential.
• Your safety: be sure to check the tide tables.

The Banc d’Arguin is a living force protecting the entire Arcachon basin. Its shifting geology and biodiversity make it a unique site in Europe, attracting between 200,000 and 300,000 visitors every year according to activity reports from SEPANSO (Société pour l’étude, la protection et l’aménagement de la nature dans le Sud-Ouest). Ready for this wild immersion in the heart of an area as coveted as it is fragile? Book your stay at the Fontaine Vieille campsite in Andernos and come and tread the sands of this territory!

Source :

SEPANSO. (2024). Activity and management report for the Banc d’Arguin National Nature Reserve. Bordeaux, France.