One of these days i'll learn how to spell Niagara. Even thought it was only 6 letters, I spelled it Niagra, like I always do and couldn't figure out why it wasn't working. Sorry I ruined the 100% for Niagara :-(
Tried to figure out how you were stretching Amager into seven letters for most of a minute before it dawned on me that the rest of Copenhagen was on an island too...
The Persian Gulf is also known as the Arabian Gulf (also 7 letters). I got it right of course, but checked to see if it worked and it didn't. https://en.wikipedia.org/wiki/Persian_Gulf_naming_dispute
A joke I first read many many years ago: "Can you tell me what nationality Napoleon's parents were?" "Of Corsican." I didn't think it was funny then, or now, but how often do we get to speak about things Corsican?
Also misread Balearic as Baltic lol