Tremadog Bay

[1] It comprises the area between Mochras (Shell Island) in the east and the Trwyn Cilan headland of the Llŷn Peninsula in the west.

The Sarn Badrig reef extends south-west from Mochras and forms a natural barrier between Tremadog Bay and Cardigan Bay proper.

[2] The Afon Glaslyn flows into the north of the bay and Saint Tudwal's Islands lie at the western end of the bay.

[2] The towns of Pwllheli, Criccieth, Porthmadog, and Harlech lie directly on the bay.

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