What's that thing up there in the sky..? What's that strange buzzing sound..?
It's the sun, of course (remember the sun?). And it's the sound of visitors strolling round Richmond Market Place, soaking up sunshine and ice-creams, basking in the warmth, and dropping into the Information Centre to pick up a map, a few brochures, a pack of postcards, some advice on how to take a boat down the river to London ("Sorry, sir, wrong Richmond"), or a copy of Richmond Walks.
Please enjoy your visit, be nice to others - and stay safe.