March 15, 2017March 8, 2017 by Paul

Contest #491 Hint

Over 20 km of walls on an island that is less than 1/4 km²

3 Replies to “Contest #491 Hint”

Ashwini Agrawal says:

March 15, 2017 at 03:53

Bavljenac island . Croatia
Tuxedo Jones says:

March 17, 2017 at 18:26

Bavljenac Island Croatia
Lelie says:

March 17, 2017 at 19:43

Bavljenac island (Croatia)

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