"Two popular cruise lines, Royal Caribbean International and Celebrity Cruises, have partnered with Hard Rock International and Seminole Gaming to provide reciprocal benefits and exclusive discounts, offers, and other perks to members across all brands. This will create amazing options for travelers at top casinos on land and sea all around the world.   Royal Caribbean International and Celebrity Cruises are teaming up with Hard Rock International and Seminole Gaming in a first-of-its-