Having set my alarm for 5am, I headed up to Renfrew on the rumour of "something exciting" heading for Glasgow in the early hours.
Looking at MarineTraffic before I left the house, I saw that HMS Bulwark was the surprise visitor. That made the trip more than worthwhile. I had read that she spent her 11th birthday in Scottish waters a few days earlier, so I knew that she was in the vicinity.
She came up the river assisted by all three local Svitzer tugs.
Bulwark is expected to leave Glasgow on Monday morning.