Illana Bay, also known as Iranun Bay, is a large bay of the Moro Gulf, off the southwestern coast of Mindanao island in the Philippines.
Illana Bay and Moro Gulf form part of the Celebes Sea.

See also
- Sibuguey Bay — also of Moro Gulf
Teisipäev, märts 11, 2025
Illana Bay, also known as Iranun Bay, is a large bay of the Moro Gulf, off the southwestern coast of Mindanao island in the Philippines.
Illana Bay and Moro Gulf form part of the Celebes Sea.
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