I am arriving in Dusseldorf June 15th 2014 at 8:00 am (Sunday) I have a whole day and a whole night and have a connecting flight the next day June 16th 2014 (Monday).
I want to take advantage to how close I am to Amsterdam and travel there by train and spend the day in this city, it would be a dream come true!
Can someone advice me on the best way to travel there, (Train) where to purchase the tickets? Online? In advanced? Is this possible on a sunday?