Some four million visitors find their way to the wide variety of top attractions in Rotterdam each year. The city offers something for everyone: those who love the hectic bustle of the city or who want to rise up into the air or who want to look into the eyes of sharks, but also for people who are searching for the peace and beauty of nature. One of Rotterdam's main attractions is Diergaarde Blijdorp, the extensive zoo that includes the impressive Oceanium, where visitors can walk through the huge shark tunnel surrounded by sharks and giant tortoises. A visit to Rotterdam would not be complete without a tour of the harbour on the Spido or a visit to the 185m-high Euromast. Fun for the whole family can be had at the Plaswijckpark with its extensive playground, road safety training park and zoo. For an oasis of peace in the middle of the hectic city, visit the lovely gardens of Arboretum Trompenburg.