A new website called WreckedLastNight.com has been launched to explain the dangers of alcohol to underage drinkers.
The campaign, funded by the Welsh Government, is based on the feedback of hundreds of 14 to 16-year-olds who were asked the reasons why they chose to drink alcohol, or not.
Of those who said they did not drink, the majority said it was because of fears they would harm their health and the fear of causing embarrassment to themselves.
Partner agencies across Rhondda Cynon Taf, Merthyr Tydfil, Caerphilly and Blaenau Gwent joined forces with Ethos Creative and launched WreckedLastNight.com
3D Adverts for the new website will be shown in cinemas and there will also be bus and billboard adverts to raise awareness and generate interest.
Teenagers who visit wreckedlastnight.com also have the chance to put their new-found knowledge to the test, by entering a prize draw quiz in which they can win their share of £1,000 in Apple vouchers.
Local Government and Communities Minister, Carl Sargeant said: “This campaign spells out the dangers of underage drinking and reinforces the Welsh Government’s substance misuse strategy .
“Preventing harm is a key action in our strategy and this includes helping children, young people and adults to resist or reduce substance misuse by providing them with information about the damage that substance misuse can cause to their health, their families and the wider community. ”