Discounts for CHM members: 10% for reservations directly to the Sales dept. of the hotels.
Also, a free room upgrade, subject to availability.
Info and reservations:
Mr. Konstantinos Zdralis
Tel. + 30 6936 533795
k.zdralis@knossians.com

https://www.hyatt.com/en-US/hotel/greece/grand-hyatt-athens/athgh