Record #00465Nature archive
The Sea of Marmara in Türkiye covers about 11,350 square kilometres and is recorded as the world's smallest true sea, connecting to the Black Sea and Aegean Sea through the Bosporus and Dardanelles.
Current Record
about11,350km²
Current record value
The Sea of Marmara lies between the European and Asian parts of Türkiye and is an important link between the Black Sea and the Mediterranean.
Its reported area of about 11,350 km² refers to the surface, not volume or seabed area, and remains subject to boundary definitions.
The record conclusion has sufficient verification support.
Basis: direct confirmation by an authority
Guinness identifies Marmara as the smallest true sea at 11,350 km². A geological age in the registry should not be used as a precise record start date.
Current Entry identifies the current entry in this archive; it does not establish that the record is still held today.
The record value on this page is organized from the public sources above. Measurement methods may differ; JiLuDB follows the unified method described for each entry.
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