52/365 Smoke rings?

Today is a gorgeous, warm, sunny day. England has just beaten Slovenia, and although they played much better than of late it was still a "heart in mouth" experience towards the end. Well done lads.
Haven't really had time to go out with the camera today, so here is an old shot from a couple of years back. No idea how this was formed, it looks like a giant smoke ring.




Building work progressing well, more news on that tomorrow.