Anchor: Diving and snorkeling are the things to do here, and the shimmering waters house some wonderful sea life.
Entailed: Diving and snorkeling are available, and there is sea life in the waters. 
Contradiction: There is no diving or snorkeling available here. 
Contradiction: The people are climbing poles while fishing for attention.
Contradiction: Electricity demand changes over time.
Contradiction: Less than a fifth of Honk Kong beaches are in that 9-mile stretch.
Contradiction: A family is eating.