435 km² of channels, mudflats, and sandbars: this body of water can be explored from the shore, by boat, or on foot along the foreshore. Fishing in the Arcachon Basin is governed first by the tides and second by the season. From our campsite on the Arcachon Basin in Andernos-les-Bains, Mauret Beach is just a 5-minute walk away.

Here are the species, the best spots, and the rules you need to know before you go.

Key points to remember

• The tide controls everything: the incoming tide stirs up the predators, and the outgoing tide exposes the shellfish beds.
• Three types of fishing coexist in the basin: shore fishing, boat fishing, and shore-based fishing.
• The sea bass must be at least 42 centimeters long and must be marked in accordance with regulations as soon as it is caught.
• Clams and mussels may be collected up to a limit of 3 liters per person per day.
• The harvesting of wild oysters is prohibited throughout the Arcachon Basin.

Species to Look for by Season

The Arcachon Basin functions as a giant nursery, which explains the high density of fish in its channels. The eelgrass beds, which cover 4,110 hectares according to the Arcachon Basin Marine Nature Park, provide shelter for fry and cephalopods. Sea bass remains the prized catch from spring through fall, ahead of the gilthead seabream, which forages on the sandy bottoms, and the sole, which is more elusive on the mudflats. The cuttlefish, meanwhile, migrates upstream through the channels in the spring, drawing large numbers of boat fishermen to the area.

Be careful around seahorses: both species found in metropolitan France live here; they are protected and must be returned to the water immediately.

Beach Fishing: A Lesson from Low Tide

Beachcombing opens up the Bassin to beginners and families alike, provided you time your visit for high tidal ranges. When the tidal range exceeds 90, the foreshore extends several hundred meters, providing access to beds of Japanese clams and cockles. All you need is a hand rake, a mesh basket, and a ruler. Regulations require Japanese clams to be at least 3.5 centimeters, European clams at least 4 centimeters, and cockles at least 2.7 centimeters. Return anything smaller than the minimum size to the water and fill in your holes; otherwise, the buried marine life will die within a few hours.

Our tips: Start heading down onto the foreshore 2 hours before low tide—never after—because the tide comes back in faster than you might think in the esteys. Wear closed-toe shoes—oyster shells can cut you deeply. And figure out which way to head back before you look down at the sand: the fog can obscure the coastline in just a few minutes.

The Best Spots and Conditions for a Successful Outing

The northern part of the basin has a concentration of spots that are accessible without a boat, starting with the Andernos-les-Bains area:

• The jetties and piers in the northern part of the Arcachon Basin are great spots for lure fishing at dusk, when sea bass are hunting near the surface.
• The backwaters and drainage channels should be fished upstream, since the current carries prey downstream there.
• The northern beaches, including Mauret Beach, serve as a place for families to learn how to beach fish.
• The southern channels, which are more technically challenging, are booked for guided boat trips due to shifting shoals and currents.

Our tip: The best spot in the Bassin is the one you reach at the right time. An average spot fished at the right time of the tide is always better than a famous spot visited at the wrong time.

From the campsite, it’s an 8-minute walk to Mauret Beach:

Regulations You Need to Know Before You Leave

Recreational fishing remains unrestricted but regulated, and enforcement is strict. The Marine Nature Park reminds the public that exceeding the shellfish quota can result in a fine of up to €1,500, and certain violations can result in fines of up to €22,500. The main rules can be summarized as follows:

• The quota for cockles and clams is 3 liters per person per day and 10 liters per vessel.
• The fish is tagged by removing the lower portion of the caudal fin immediately upon capture.
• Shellfish gathering is prohibited within 15 meters of oyster farming concessions.
• Beach fishing is prohibited between sunset and sunrise, and the sale of catches remains prohibited.
• The daily sea bass catch limit varies according to current regulations: check with government agencies before each season.

Would you like to go fishing in the morning and go for a swim in the afternoon without having to get back in the car? Book your stay at our campsite, Camping Fontaine Vieille, in Andernos-les-Bains, and plan your fishing trips right from the shore of the Bassin.

Illustrative images generated by artificial intelligence.