The 5 English Mile helpdesk is near the entrance of the Dam tot Dam Park.
On presentation of your race number, you can hand in your own clothing bag on the Heijermansstraat, between the Dam tot Dam Park and the finish line. You will then receive a sticker on the starting number with a number that corresponds with the number on the garment bag, so you can pick up your garment bag after the run. You can drop off and pick up your bag between 18:45 and 22:45.
Dressing facilities are only available in Zaandam in De Struijck sport complex, near the Dam tot Dam Park. There is no shower facility. You can also leave (limited) bags here, but this is at your own risk. Participants in the Business Run can store their clothing in the changing tent in the Dam tot Dam Park.