On the sand at Kalapaki Beach, Duke’s is dedicated to legendary surfer Duke Kahanamoku, Hawaii’s Ambassador of Aloha. The restaurant’s open-air design offers stunning, sweeping ocean views while the 30 foot waterfall plunges into a koi pond below that meanders through the tables. Enjoy a leisurely lunch, romantic dinner, or tropical cocktail in a fun, friendly atmosphere.On the sand at Kalapaki Beach, Duke’s is dedicated to legendary surfer Duke Kahanamoku, Hawaii’s Ambassador of Aloha. The restaurant’s open-air design offers stunning, sweeping ocean views while the 30 foot waterfall plunges into a koi pond below that meanders through the tables. Enjoy a leisurely lunch, romantic dinner, or tropical cocktail in a fun, friendly atmosphere. .