Groene Hart Cruises are a company located near the canals in Leiden. During the summer months, Groene Hart Cruises run regular short cruise trips to show visitors the sights of the town. The cruises differ depending on the day of the week, but usually last around three hours. Cruise trips include a visit to the Baassemermeer and Kager lakes, and a trip around the windmills. The cruises usually depart from the harbour at 1pm.