Despite the desperately grey skies, and being extremely wet under foot, frocks were pulled on and fingers were crossed that it would stay dry enough to enjoy the boat parade.
Unfortunately, the weather gods were against us and delivered almost persistent precipitation all day, but not ones to allow our spirits to be dampened, we drank tea and bundled under brollies by the river until the Queen and her resplendent royal barge passed us by.
Flag-waving and cheering aplenty, a rendition of God Save the Queen was belted out, before escaping the river banks and squelching into Battersea Park to explore the festivities on offer.
First stop was Norman Jay's Good Times stand. The reassuring sight of that iconic double decker bus gave us a ray of hope along with some cheerful tunes and booze in plastic cups.
By this point, even the most hardcore ravers were searching for shelter, and we found ours at The Powder Rooms, who had popped-up for the day offering retro makeovers. Princess Ann-style beehives were the 'do of the day.
Once the 'hive was in place, a little bit of head candy was required - we found vintage hats fit for a Queen at the various vintage stalls.
We swung by the fairground, but didn't fancy a go on the soggy swings, so made our way over to the carboot sale.
Here we found vintage trinkets, oddities and loveable junk all jostling for attention beneath canopies, standing proudly in front of their caravan-ing owners.
The carboot was also home to some impressive classic cars, from this beauty - which was pure Penelope Pitstop - to old-school taxis and police cars. You could even hop in a few too, which was handy for taking cover from the rain.
Which, by this point, was becoming far too persistent for our liking, so we grabbed a homemade chocolate brownie and left the park, dodging puddles and reminiscing over what a wonderfully British day we'd had - rain, royalty and rock 'n' roll.