There is a warning visitors are not aware of the dangerous tidal conditions

More than 30 people - most trapped on sandbanks- have been rescued by the inshore lifeboats in the past few days.

In one incident, three adults and two children were picked up after being stranded in three feet of water.

It follows the sea deaths of three young people across in north west Wales in the past fortnight.

Paul Frost, spokesman for the Rhyl RNLI crew, said he believed many holidaymakers were unaware of the tidal conditions.

"The problems seems have escalated in the past few weeks," he said.

A major search and rescue operation was launched to find one of the brothers

"I think it's because so many people are going to the Med where there's virtually no tide and when they come here they just don't recognise the dangers.

"They go out onto the sandbanks without realising that there's a strong tide coming in behind them and then they find themselves in trouble."

Three young people have died after getting into difficulties off the North Wales coast.

Sarah Louise Roberts, 12 from Caernarfon, was swept out to sea at Newborough on Anglesey on 22 August .

And two teenage brothers James and Matthew Hole, from Hagley in Worcestershire, died in the sea at Llandanwg beach near Harlech.

A day long search and rescue operation was launched to try to find the younger brother after he was swept out into the sea.

Inquests into all three deaths have been opened and adjourned.

Mr Frost said the RNLI had started a campaign in areas such as the West Midlands to try to raise awareness of the dangers among holidaymakers.