Fancy a bit of nature? This is a hidden gem in Rotterdam since the 19th century. Discover this tiny island by walking in 45 minutes or go jogging. The biggest eye catcher would be the Scottish Highlanders. They live here from May till December. They are harmless, but keep a distance of at least 25 meters. This island is also a must-visit for birdwatchers. Take a nice picture of the amazing skyline view of the city from there. Entrance is free and make sure to bring your own water and snacks. Here is the location!