Anchor: The shallow lagoon of is calmer and saltier than the Mediterranean, so you sink less easily.
Entailed: The Mediterranean isn't as calm and salty as the lagoon.
Contradiction: The lagoon is actually very deep and choppy. 
Contradiction: A man stands.
Contradiction: A young man is holding a bag sitting in front of an entrance.
Contradiction: She plans on leaving.
Contradiction: A woman shares her umbrella.