Rietland at Aqua Netherlands 17/18/19 March 2022 General After the fair has been unable to take place for 2 years due to corona, Rietland will be present again this year. Dates: March 17, 18 and 19, 2021. Opening hours: 10h00 – 18h00 We can then be found at stand no. B.109. Register via the link below.