The mother of a 15-year-old boy who drowned in a reservoir has said the impact on the family has been "indescribable".
Maxine Johnson's son Reuben died while swimming with friends in Pontsticill Reservoir in Bannau Brycheiniog in 2006.
She has joined calls from Welsh Water warning people about the dangers of unauthorised swimming in reservoirs.
The rate of accidental drowning in Wales is almost double that of the UK as a whole, according to the National Water Safety Forum.
Reuben was camping with friends and celebrating after finishing his GCSEs when some decided to swim across the reservoir.
"The Saturday it was extremely hot weather," recalled Ms Johnson.
"They were only wearing shorts, they had no other protective clothing and, unfortunately, cold water shock got to Reuben about three quarters of the way across."
