Twristiaeth ydy'r cyd-destun:
The coastal fringe: where the Mawddach River meets the deep blue sea water of Cardigan Bay – this is the coastal fringe of Wales, as picturesque and enchanting as you could wish
Dyma'r unig ddiffiniad sydd gen i:
it refers to the shallow areas at the coastline where conditions are favorable to the development of phytoplankton or other marine organisms
Unrhyw awgrym, os gwelwch yn dda?
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