Mers-les-Bains (Mers-les-Bains)
- commune in Somme, France
- Country:
- Postal Code: 80350
- Coordinates: 50° 4' 2" N, 1° 23' 16" E
- GPS tracks (wikiloc): [Link]
- Area: 5.39 sq km
- Population: 2840
- Web site: http://www.ville-merslesbains.fr
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q377932
- Wikipedia Commons Gallery: [Link]
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/03c0myb]
- GeoNames ID: Alt: [2994313]
- SIREN number: [218005064]
- BnF ID: [152770110]
- VIAF ID: Alt: [242189990]
- GND ID: Alt: [4247116-3]
- YouTube channel ID: [UC--FrKNAgzg0Iufb_CiLldQ]
- INSEE municipality code: 80533
Shares border with regions:

Saint-Quentin-la-Motte-Croix-au-Bailly
- commune in Somme, France
- Country:
- Postal Code: 80880
- Coordinates: 50° 4' 25" N, 1° 27' 7" E
- GPS tracks (wikiloc): [Link]
- AboveSeaLevel: 109 м m
- Area: 6.91 sq km
- Population: 1297


Eu
- commune in Seine-Maritime, France
- Country:
- Postal Code: 76260
- Coordinates: 50° 2' 50" N, 1° 25' 11" E
- GPS tracks (wikiloc): [Link]
- AboveSeaLevel: 17 м m
- Area: 17.93 sq km
- Population: 7106
- Web site: [Link]

Le Tréport
- commune in Seine-Maritime, France
- Country:
- Postal Code: 76470
- Coordinates: 50° 3' 38" N, 1° 22' 16" E
- GPS tracks (wikiloc): [Link]
- Area: 6.77 sq km
- Population: 4935