Dinton Pastures, gravel pits near Reading.
Canon R5 MkII + RF200-800.
Oh and a bonus “classic” shot of a pair displaying to each other:

Dinton Pastures, gravel pits near Reading.
Canon R5 MkII + RF200-800.
Oh and a bonus “classic” shot of a pair displaying to each other:

Interesting grebes. They remind me a lot of coots. Our grebes have much shorter bills.
Easy to tell the difference - Coots walk on water:
Same place - and yes, similar habitats and behaviours.