While booking rooms in Sirius Hotel hotel via Horse21 you get the relevant rates and availability information in the real time mode. Please note that the booking is to perform using a credit card. Enter check-in and check-out dates and the number of guests and press "Check availability". Choose one of the listed accommodation possibilities and you will be redirected to the Customer Form. Any questions can be addressed to our Customer service at +31 (0)20 4895917 or via the Feedback form.