Lanterns will be lit along the Monmouthshire & Brecon canal tonight to mark its 200th anniversary.
The waterway was once a vital cog in the wheel of Welsh industry, helping to transport iron and coal to Cardiff, Newport and Barry docks.
It helped revolutionise the way goods were transported - previously via packhorses - and is credited not only with bringing economic benefits to the South Wales valleys, but the whole of the British Isles.
The canal is also considered a national treasure by locals, and for some plays an important part in their family history and heritage.
The 'Lighting up the Canal' festivities this evening are the culmination of several events celebrating the waterway's bicentenary.