Went into the Ore a few days ago and was surprised to hear Humber coastguard talking to a yacht which had run up the beach near Aldburgh, co-ordinating with Aldburgh lifeboat. We were entering the river so did not see anything, so carried on. Saw a yacht aground inside the entrance which had engine failure - she was pulled off the shore by a nearby motorboat and we then towed him to a mooring at Orford. Spoke to Orford harbourmaster and apparently Thames coastguard limit stops at the Deben entrance and then Humber takes over. I always assumed Thames went right up to Lowestoft.