Please inform Douro & Sea - River Side in advance of your expected arrival time. You can use the Special Requests box when booking, or contact the property directly with the contact details provided in your confirmation. Guests are required to show a photo identification and credit card upon check-in. Please note that all Special Requests are subject to availability and additional charges may apply. Please note that for flexible rates a 50% deposit will be charged on day of booking via credit card. The remaining amount will be charged in the credit card at check-in. For non-refundable rates the full amount will be charged immediately.