Tunnel Run

Royal Windsor Horse Show is an experience for horse and rider.
The first obstacle apart from parking is to ride your horse
over the rattling metal trackway to a working in area.
Tetuã seems to revel in going on this and we walked up a long length only to be asked if we could get off it onto the grass as the noise was frightening her horse.
Ooops, sorry!
After that we were giving other horses a lead across it
that were having nervous moments.
(We did discover a way round it in the end near the road)

The next point of interest is the tunnel that goes underneath the road beside the River Thames. There's a one-way traffic system through it.