Water Covered Country Borders

Can you list all countries that have a border that is entirely either a river, a lake or are connected by road above/ below the sea?

Includes crossing where you go through a river island or an artifical island.
Thanks a lot to Jerry928 for his knowledge and research!
Country 1 comes before Country 2 in alphabetical order; answers are sorted alphabetically by Country 1 then by Country 2
Quiz by scambigol
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Last updated: June 3, 2020
First submittedMay 22, 2020
Times taken82
Average score70.0%
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Country 1
Country 2
Argentina
Uruguay
Azerbaijan
Kazakhstan
Azerbaijan
Turkey
Azerbaijan
Turkmenistan
Bahrain
Saudi Arabia
Botswana
Zambia
Denmark
Sweden
D. R. Congo
Tanzania
France
United Kingdom
Germany
Poland
Malaysia
Singapore
Mauritania
Senegal
Moldova
Romania
North Korea
Russia
Romania
Ukraine
+1
Level 69
May 26, 2020
turkey and azerbaijan on the river aras?
+1
Level 75
May 26, 2020
added, thanks a lot!