In the US, we might not consider a bar a place for afternoon tea, but it's pretty common in the UK. When I was recently there, I had a lovely tea at Browns Brasserie & Bar.
Tea was served in the traditional leaves-in-pot style, and I poured through a filter to strain.
The food was delicious!
Sandwiches: Watercress and egg salad, salmon with butter, and cucumber with cream cheese.
Scones with jam and clotted cream
Desserts: Vanilla custard, chocolate-covered cream puff, whoopie pie (might not be the British term!) and lemon tart
These serving trays seems to be "en vogue." The one from the yacht was similar.
I want to make a comment about British scones - here is a classic example. Simple, lightly sweet round scones, one plain and one with dried fruit. The decadence comes from the addition of the jam and cream.
It was a lovely, leisurely experience (though I got lost finding it, which was another adventure!). I had an entire corner to myself, and the pub wasn't busy yet so I was able to sit and write and sip. I hope you have the chance to take tea in a pub someday, too.