Inshore lifeboat launched at 1525 to report of 4 Kayakers in difficulties at Hoo Island, River Medway. The casualties were located at 1547 and taken to Gillingham Marina where they were handed into the care of the Medway Coastguard Rescue Team and other than being a bit cold they reported having no other problems. The lifeboat then recovered their Kayaks and brought them ashore.The lifeboat was released at 1614 and arrived back on station at 1635. After cleaning and re-fuelling the ILB was ready for further service at 1650. Wind Southerly 2.