Daniel's fishing gear was found on the river pontoon

"We need to get the message across - go out and live your lives but there are a lot of problems out there and you need to be one step ahead."

It is based on a similar idea operating in the US where youngsters act as "buddies" for each other.

Police also renewed appeals for any sightings of Daniel by showing clothes similar to those he was wearing on the day he disappeared.

But a spokeswoman for Hampshire Police said it was likely the teenager fell into the river and was swept away.

The police spokeswoman said: "Daniel's parents are still running a high visibility campaign for information for their son and we completely back that.

"From our point of view we are still working on the most distinct probability that he fell into the water and failed to get out again.

"We do have an ongoing inquiry but unfortunately there is no evidence to suggest anything else."

Freezing conditions

Daniel was last seen walking towards a pontoon on the River Hamble, at about 2330 GMT on 1 January.

After he failed to return to his home in Hamble, Mr and Mrs Nolan called the police at 0400 GMT on 2 January.

In the hours before he disappeared, Daniel had been fishing with friends in freezing conditions, before he decided to go to a shop.

When he saw his friends again, they told him they were going home because it was so cold.

Daniel told them he would catch up and set off towards the icy pontoon to pick up his fishing tackle.

His gloves and fishing tackle were later found on the pontoon at Hamble Marina.