It once connected the River Medway with the River Thames and made the Isle of Grain a true island .
Yantlet Creek is the creek draining into the River Thames that separated the Isle of Grain from the Hoo peninsula .
Yantlet Creek once connected the River Medway with the River Thames and made the Isle of Grain a true island .
Yantlet Creek is the creek draining into the River Thames that separated the Isle of Grain from the Hoo peninsula .