Some of the profits from the water-sport tourists are channelled into getting local Moroccan children interested in the water.
Primary school groups and youngsters from orphanages are encouraged to get their first taste of the sea under the watchful eyes of trained Moroccan monitors.
They learn to swim and are taught about the marine environment as well as initiated into ecological awareness and safety.
The best way to start mastering wind and waves is to learn kitesurfing - the most popular branch of water sports with beginners of all ages.
Kitesurf fans like Fred Peyre from Paris fly regularly to Essaouira for lessons.
"With kitesurfing you need helpful monitors to hoist your kite aloft," he says.
"You get more help here than elsewhere because the residents of Essaouira are so friendly."
He is joined by a well-heeled couple from Casablanca, about 300km (190 miles) further up the coast, who have driven down for the weekend with their boards on the top of their van.
Cosmopolitan
But some less well-off Moroccans, like Tareq Chaabi, are also joining in the trend.
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"I surf for five months a year," he says as he carries his rather worn board into the old town.
"You can get a second-hand board at a reasonable price," he says.
And, he adds, lots of people are inspired by images of their jet-skiing king, 46-year-old Mohammed VI.
The Union of Open Air Sports Centres The surfing school attracts clients all year round.