Slight hints of green are starting to appear everywhere as Spring unpacks it's wardrobe for the summer dance season

A magnificent sunny morning

Light Bulb - 2
The general consensus appears to be that the object is a buoy used for supporting the 'pens' at a local fish farm (the same one where 16 ton of fish escaped about 15 years ago,so you can guess what's in the lake now)

and this is the other side of the lake in a picture taken without zoom standing within 1 metre of the picture shown below

so this gives you a better idea of how big the 'object' is