'The Thames is incredibly challenging'
Volunteers at the RNLI base in Chiswick explain just how busy and varied their work is.
BBC News
The Royal National Lifeboat Institution (RNLI) is the largest of the lifeboat services operating around the coasts of the United Kingdom, the Republic of Ireland, the Channel Islands, and the Isle of Man, as well as on some inland waterways.
Volunteers at the RNLI base in Chiswick explain just how busy and varied their work is.