Which water separates Australia from New Zealand?

The Tasman Sea is the body of water that separates Australia from New Zealand. It is a marginal sea of the southwestern Pacific Ocean, situated between the southeastern coast of Australia and the islands of New Zealand. The sea is approximately 1,200 miles (2,000 km) wide. Other options provided in the question serve different geographical functions: the Cook Strait separates the North and South Islands of New Zealand, while the Bass Strait separates the Australian mainland from the island of Tasmania. The Magellan Strait is located at the southern tip of South America, and the Great Barrier Reef is a coral system off the northeastern coast of Australia. The Tasman Sea was named after the Dutch explorer Abel Tasman, who was the first recorded European to reach Tasmania and New Zealand [1].

Sources

1. [1] https://www.nma.gov.au/defining-moments/resources/new-zealand-becomes-a-separate-colony