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Sea, surf and diving

8 articles

Surfing, sailing, land yachting and snorkelling: enjoying the coast and the sea with the right habits.

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Wooden lifeguard post on a sandy beach, with a yellow flag on the mast and the French flag, under a blue sky

SeaRules and regulations

French beach flags: what each colour means

Since 1 March 2022, the mast of supervised French beaches has flown rectangular green, yellow or red flags set by decree: yellow took the place of the old orange pennant. Purple is not in the decree. Two red-and-yellow flags mark the supervised zone, and everywhere else you swim at your own risk.

Portrait of Chloé SchmidtChloé Schmidt··6 min

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A woman in a yellow swim cap and black swimsuit wades knee-deep into a calm sea at dawn, a yellow tow float trailing behind her on a pebble beachSea

Cold water swimming: the risks to know first

Cold water swimming for beginners: why the first minutes are the danger, why no safe duration is published, who should see a GP first, and what research shows.

Portrait of Arnaud CoudercArnaud Couderc··8 min

Shaping bay with a raw white foam surfboard blank on a wooden workbench, a yellow tape measure and a metal calliper beside itSea

Surfboard volume calculator for your weight

Work out your surfboard volume in litres from your weight and ability: the tool, Firewire’s chart, Lost’s ranges and where each one stops being reliable.

Portrait of Julien de JurquetJulien de Jurquet··7 min

Instructor seen from behind, standing in shallow water facing out to sea, with three pupils lying on foam boards in the broken waves near the shoreSea

Learning to surf, from school to first wave

Accredited schools, qualified instructors, foam boards, priority rules, beach flags and rip currents: a guide to learning to surf, country by country.

Portrait of Arnaud CoudercArnaud Couderc··16 min

An open-water swimmer in a black full wetsuit and orange cap, mid front crawl in a grey-green sea, an orange tow float behind himSea

Wetsuit thickness: 3/2, 4/3 or 5/4?

3/2, 4/3, 5/4: which wetsuit thickness for which water temperature, when to add boots, gloves and a hood, and how warm Britain’s coastal waters get.

Portrait of Nolwenn BastideNolwenn Bastide··7 min

A woman surfer seen from behind walking along the water's edge on a sandy beach, a foam beginner's board under her arm, in soft morning lightSea

Surfboard volume: the formula and charts

Work out your surfboard volume: your weight times a coefficient for your level, the charts from Firewire and Lost, and why the board’s shape matters too.

Portrait of Nolwenn BastideNolwenn Bastide··8 min

A wide sandy foreshore at low tide at sunrise, with pools and sand ripples, the sea far off and seaweed-covered rocks in the foregroundSea

Understanding the rise and fall of the tide

High and low water, tidal range, France’s coefficient from 20 to 120 and the rule of twelfths worked through: how tides work and where to find tide times.

Portrait of Nolwenn BastideNolwenn Bastide··8 min