Partners

• 
  
  Strait of Kvarken
  Kvarken Council
• 
  
  Strait of Bonifacio
  Corsica, Sassari, Maddalena
• 
  
  Strait of Otranto
  Lecce, Vlorë, Fier
• 
  
  Strait of Sicily
  Trapani
• 
  
  Strait of Fehmarn Belt
  Lolland, Ostholstein
• 
  
  Gulf of Finland
  Uusimaa, Harju
• 
  
  Strait of Messina
  Messina, Reggio Calabria
• 
  
  Strait of Dover
  Pas-de-Calais, Kent, Nord, West Vlaanderen
• 
  
  Strait of Gibraltar
  Andalusia, Tanger-Tetouan-Al Hoceima
• 
  
  Strait of Corfu
  Ionian Islands
• 
  
  Corsica Channel
  Maremma and Tirreno