AN amorous couple put the blue into Clacton’s blue flag beach after being filmed apparently having sex under the sea wall.

The frisky pair were captured cavorting in broad daylight next to steps leading down to Martello Beach by a passer-by.

The cameraman claimed families and groups were taking early evening strolls along the promenade just feet away from the romping couple at about 7pm.

“Some people stopped and chatted to them!” he said.

“I have a still photo of a group chatting with them.”

The couple’s identity is unknown. Their faces can’t be seen on the video but the woman is believed to have a bulldog tattoo on her back.

More than 20,000 people have viewed the footage after it was posted on YouTube last Thursday.

Tendring police chief Russ Cole said his officers took a “dim view” of such antics.