Simplify the following text for a Grade 10 native English-speaking person.
Original: The wetlands and coastal mangroves are noted for their importance as a fish nursery and crocodile habitat , providing important drought refuge and finally the Great Barrier Reef lies off the east coast and is an important marine habitat .
Simplified: The wetlands and coastal mangroves are noted for their importance as a fish nursery and crocodile habitat , providing important drought refuge . The Great Barrier Reef lies off the east coast and is an important marine habitat .