Possible Clues:

• African plain rich in wildlife
• Wild tiger seen in park
• African plain's surprisingly greenest before onset of inundation
• Vast plain in Tanzania known for its wildlife
• Plain ties and green buckle
• See tiger roaming round northern plain
• National park established around fantastically green island
• National park that's home to more than 3,000 lions
• Plain green compound in group with iodine
• Large plain green site for development