It was good to see Photogrammetry mentioned a couple of times. As an ex Chief Photogrammetrist (I'm an ex everything these days) it was a real treat to see that the skills I learned and passed on are still good today.Callanish is on my bucket list.
I remember walking amongst the Stonehenge sarsens many years ago, fascinated by the axe marking first recognised by photogrammetry. Many years later I took two overseas colleagues, and over the years, the atmosphere had been lost.
Carnac seems to have retained it's atmosphere, and it's vast.
So I think you are right, in the UK, there are far too many tourists crammed into a small site. I'll certainly watch the programme, especially as it includes Alice Roberts.
Avebury is good to walk around by moonlight, just don’t trip over anyone having sex.
If you do go and find someone alone, warm and woolly. Big mistake, that’s a sheep!Any nights in particular?
Asking for a friend.