Inshore lifeboat launched at 1602 to report of small Yacht in difficulties off Chatham Historic Dockyard, on route it was confirmed that craft was now aground, upstream of Thunderbolt Pier. ILB almost on scene at 1642, when UKCG re-tasked the ILB to report of person seen to have jumped from M2 Bridge, Rochester. ILB on scene at 1652, commenced search of Bridge along with Sheppey & Medway CRT, the search was joined by Police Helicopter and CG Rescue Helicopter. With the loss of daylight and the area thoroughly searched, the ILB was released at 1825. On returning downriver, the ILB checked on the initial Yacht, which had now lines to the shore and all okay. The ILB was re-tasked at 1844 to a further incident, a small yacht had been reported close to the beach, just East of Garrison Point, with the ILB still upriver, three crew from station were sent to the scene dressed with suitable drysuits, lifejackets, etc, they made contact with the owner, who was low on fuel and struggling against the wind, they re-assured the owner, that the ILB was on route. The ILB arrived on scene at 1918, due to the wind, the yacht was towed into the safety of the Lower Camber at Sheerness, where it was secured, the ILB was made ready for service at 2027. SW 6 gusting 8.