Summer night deals not to be missed Prepare for truly magical experiences this summer. Enjoy long days and short nights with an abundance of light. Discover new destinations and explore what these places have to offer. You can now get up to 25% off at Clarion Hotel Helsinki. Book your summer nights below! Terms and conditions To be paid directly upon booking. Cancellations must be made within 24 hours of purchase (please contact our Customer Service department). Thereafter the booking cannot be cancelled or changed, and no refunds will be made. Breakfast is included. The offer is subject to availability and cannot be combined with other offers.