Tides / Guides

Can you make money from seaweed, shellfish and low tide trips?

By Paweł. Updated 2026-10-30.

The short answer: what you gather recreationally you cannot legally sell. Selling shellfish and seaweed is a food business with licences, registration and inspections. The realistic business for someone who knows the shore is knowledge: trips, workshops and content.

A recreational catch is for you only

In France the rule is written into law: a recreational catch is only for the fisher and their family and may not be sold. This covers shellfish, crabs and fish taken under pêche à pied de loisir. Exceeding limits and trading can bring fines and confiscation.

In other countries the rules have the same effect. Anyone who wants to gather for sale must work as a professional, with permits obtained separately. In Galicia shore gathering of shellfish is reserved for licensed professional gatherers, and amateur gathering is treated as poaching. In France professional shore gathering needs its own professional permit.

Shellfish: why they are the hardest product

Live bivalve molluscs in the EU fall under Regulation (EC) No 853/2004. In short:

Area classification follows Implementing Regulation (EU) 2019/627 and regular testing. The United Kingdom runs a similar system, with the classification list published by the Food Standards Agency. On top of this come local fishing permits, for example for cockles in Morecambe Bay. In 2004 at least 22 illegally employed gatherers died there, cut off by the tide.

Selling shellfish from the beach outside this system is illegal and dangerous for customers. With PSP poisoning you are responsible for other people's health.

Seaweed: easier, but still paperwork

Seaweed is not as tightly regulated as shellfish, but selling food made from it is still a food business. You need:

The market is competitive. In Brittany, Ireland and Scotland there are companies with years of experience and their own drying plants. A small gatherer without a brand or a sales channel is unlikely to make money from seaweed alone.

Guided trips and workshops

This is the most realistic model. People pay for a safe trip out at low tide, for help naming species and for knowing the rules. Examples are everywhere: rockpool safaris at Wembury, oyster safaris on Rømø, wadlopen from Pieterburen, crossings of the Bay of Mont-Saint-Michel.

Before you start:

The season is short and set by the tides, so you plan your calendar around daytime spring low tides. The tide forecast helps with that.

Content and knowledge

The second realistic path is selling knowledge: field guides, online courses, photos and films from the shore, work with local tourism. Here you need no harvesting licence, but you must be accurate. Do not publish advice that any shellfish are safe. Show people how to check.

Summary

IdeaLegal?What you need
Selling shellfish from recreational gatheringNoIt cannot be made legal
Professional shellfish gatheringYes, with a permitLicence, classified area, dispatch centre
Selling seaweedYes, with paperworkConsent or licence, registration, HACCP, testing
Guided tripsYesPermissions, insurance, sometimes a guide licence

Read more about gathering itself in the guides to edible seaweed and mussels and other shellfish.

Sources

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