Complex sentence: The peak of the inactive volcano, the first place in South Australia named by European explorers, was sighted in 1800 by Lieutenant James Grant from the survey brig, HMS Lady Nelson, and named for Lord James Gambier, Admiral of the Fleet.
Split into simpler sentences: The peak of the inactive volcano was the first place in South Australia named by European explorers. It was sighted in 1800 by Lieutenant James Grant from the survey brig, HMS Lady Nelson, and named for Lord James Gambier, Admiral of the Fleet.