Zwin
It has an area of 1 . 25 square kilometres in Knokke-Heist , Belgium and 0 . 33 square kilometres in Sluis , Netherlands . 
<triplet> Knokke-Heist <subj> Belgium <obj> country <triplet> Belgium <subj> Netherlands <obj> shares border with <triplet> Sluis <subj> Netherlands <obj> country <triplet> Netherlands <subj> Belgium <obj> shares border with