A 3-day trip on foot through the city, by bike to the beach, and by boat over the water. City and nature can be beautifully combined here for a few days of enjoyment in Leiden. Be sure to sail with Bob on Board's tulip boat during the tulip season! I stayed at Hoevecamping Dijkzicht with my mini-camper and did everything by bike. Day 1 City of Leiden, day 2 Katwijk-aan-zee, day 3 Boat trip Bob on Board