New bylaws restricting beach barbecues and water sports come into force today.

The busiest parts of Brighton and Hove beach are being declared barbecue-free zones after several children were badly burned last year from embers and hot pebbles.

Water sports such as sailing and windsurfing are also being banned in certain areas to prevent collisions with bathers.

Fifteen signs along the seafront inform sun-seekers of the new rules, with additional information on safety hazards, lifeguard services and where to find nearby toilets and other facilities.

Viki Miller, seafront officer, said: "It is important for beach users to understand the risks involved and the need to take care of their own welfare and be aware of the environment they are in."

Barbecues and fires have been completely outlawed in the areas between the piers and from Medina Villas to Hove Street, Hove. Barbecues will only be allowed with a licence after 6pm. They must also be raised off the pebbles to prevent the sort of injuries suffered by three-year-old Jasmine Harrison last year.

The youngster, of Ditchling Rise, Brighton, was left with serious burns on both hands when she fell on to the remains of a beach fire.

Coun Miller said: "Use a proper container and never cover up a barbecue with pebbles. This can cause serious injury as the pebbles stay hot for hours afterwards."

The beach will be divided into three zones in the summer months: one for bathers only, one for bathers, sailing boats and windsurfers and another allowing access for motorboats.

A speed restriction of five knots will be imposed on all boats within 200 metres of the shore and ten knots from 200 metres to 400 metres.

Councillor Gill Mitchell, chairwoman of Brighton and Hove City Council's environment committee, said: "Bournemouth is the only other area along this coastal strip that has the signs, so we are one of the first.

"The intention is that they will be put up all over the UK, so they will be an instantly recognisable source of useful information.

"We want everyone to enjoy the beach and be safe. Taking a moment to read the safety advice will help prevent unnecessary accidents.

"If anyone is still in doubt, the flags show where it is safe to swim and the lifeguards are always happy to help."

Steve Wills, RNLI beach safety manager, said: "Our research indicates that a high level of confusion exists among the public when they interpret beach safety signs.

"The RNLI believes the new signage standard will ensure beach safety information is simple to understand by adults and children.

"As one of the UK's premier resorts, Brighton and Hove is making its beaches safer and helping to expand a national standard seen by millions of people. I commend the council for its proactive stance."