Kronborg is near the town of HelsingÃ r on the extreme north-east part of Zealand . It is at the narrowest point of the Ã resund , the sound between Denmark and Sweden . Kronborg is situated near the town of HelsingÃ r ( immortalized as Elsinore in Shakespeare 's Hamlet ) on the extreme northeastern tip of Zealand at the narrowest point of the Ã resund , the sound between Denmark and Sweden .