Five Biggest Cities by Body of Water

Guess the five most populous urban areas within 10 miles of these bodies of water.
Most of the borders between bodies of water are taken from this picture.
The smaller bodies of water are wrapped with the given ones.
Like Gulf of Bothnia is part of the Baltic Sea, Sea of Azov part of the Black Sea etc.
City population according to citypopulation.de; I used Wikipedia for those that weren't available.
Quiz by Aaron197
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Last updated: August 15, 2020
First submittedAugust 15, 2020
Times taken74
Rating4.60
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Mediterranean Sea
Alexandria
Barcelona
Naples
Algiers
Rome
 
Gulf of Guinea
Lagos
Abidjan
Accra
Douala
Lomé
Persian Gulf
Dubai
Kuwait City
Dammam
Doha
Manama
 
Black Sea
Istanbul
Odessa
Rostov
Samsun
Sevastopol
Baltic Sea
Saint Petersburg
Stockholm
Copenhagen
Helsinki
Gdańsk
 
South China Sea
Guangzhou \
Shenzhen
Manila
Xiamen
Ho Chi Minh City
Singapore
Sea of Japan
Busan
Fukuoka
Sapporo
Kitakyushu
Ulsan
 
North Sea
Rotterdam \
The Hague
Amsterdam
Newcastle
Oslo
Edinburgh
Caribbean Sea
Santo Domingo
Caracas
Port-au-Prince
Maracaibo
Barranquilla
 
Gulf of Mexico
Houston
Tampa
Havana
Mérida
Cape Coral
+1
Level 90
Aug 15, 2020
This is a very interesting quiz, but one of the North Sea answers is puzzling: Glasgow is on the West side of Scotland. On the East side, Edinburgh is just inland from the North Sea.
+1
Level 67
Aug 15, 2020
Whoops! I mistook it for Edinburgh.

Gonna fix it soon.