Complex sentence: On New Britain a small team of British and French cavers led by Dave Nixon are joined by Backshall, the only naturalist in the caving team, and they map a Mageni river cave and hope to discover new caves.
Split into simpler sentences: On New Britain, a small team of British and French cavers led by Dave Nixon are joined by Backshall, the only naturalist in the caving team. They map a Mageni river cave and hope to discover new caves.