Text: Amenities inevitably come hand in hand with crowds, so on the main beaches be prepared to do battle with lots of other sun-seekers, all equally happy that restaurants, toilets, showers, and changing rooms are there.
Entailment: With amenities inevitably come crowds, so be prepared for lots of other sun-seekers on the main beaches.
Contradiction: Despite the number of restaurants, toilets, showers, and changing rooms available, the main beaches are rarely if ever crowded.