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Broad Water, or Broadwater (Welsh: Aber Dysynni) is a salt water lagoon near Tywyn, Wales formed from the silted up estuary of the River Dysynni. In the eighteenth and nineteenth centuries, the estuary was used by the shipbuilding industry, as small sailing ships were launched to carry peat from the local peat bogs. This industry was abandoned in the nineteenth century when the estuary became too silted up, forming the lagoon.[1] The outflow of the lagoon flows beneath a railway bridge before entering Cardigan Bay.

Broad Water
A view of Broad Water with grass in the foreground leading down to the shore , and hills in the background behind the lake.
Broad Water, looking north-east. The outflow is to the left.
CoordinatesCoordinates: 52°36′08″N 4°05′47″W / 52.6023°N 4.0964°W / 52.6023; -4.0964
Primary inflowsRiver Dysynni
Primary outflowsCardigan Bay

The area is a haven for many wetland birds,[2] and has been designated a Site of Special Scientific Interest.[3]


  1. ^ Rolt, L.T.C. Railway Adventure. p. 3. ISBN 0-330-02783-2.
  2. ^ "Birdwatching in Snowdonia". Retrieved 1 December 2009.
  3. ^ CCW - Broad Water SSSI designation