After dawn at Cuween Hill this morngin, continuing clear skies over Orkney encouraged Ronnie and I to visit the Tomb of the Eagles in the afternoon.

Back on the Mainland of Orkney we are planning observations at several sites over the next week. Today, we visited Wideford Hill at dusk.

Ronnie and I departed Hoy this morning. There's been quite a change in the weather today, with blustery winds and overcast skies.

As it was dry and reasonably bright Ronnie and I explored the landscape around the Dwarfie Stane, including other large boulders nearby.

Blue skies in Hoy this evening. The landscape was glowing as Ronnie and I once again walked to the Dwarfie Stane to project the setting sun.

Cloudless skies today in Hoy, so I headed out along the coastline and up into the hills.

It's an overcast afternoon in Hoy, ideal for recording the Dwarfie Stane in 3D using structure from motion photogrammetry.

Strong sunlight this morning provided excellent conditions for filming projected images inside the Dwarfie Stane.

This afternoon we had a break from the Dwarfie Stane. Ronnie got to work with some sketching and painting while I spent a few hours exploring Rackwick beach.

Clouds gathered over Hoy this afternoon, but the western sky cleared enough for Ronnie and I to project images of the setting sun inside the chamber of the Dwarfie Stane.

Our second day in Hoy dawned bright and sunny, so Ronnie and I made our way to the Dwarfie Stane to explore daytime projections.

Our first evening on Hoy. The evening sky seemed to be clearing to the west so we headed out to the Dwarfie Stane.

We've arrived on the island of Hoy and now it's time to become equated with the Dwarfie Stane. This remarkable Neolithic chambered cairn is cut into a single block of sandstone.

Today, Ronnie and I departed Kirkwall and crossed Scapa Floe to the rugged island of Hoy. Our destination was Rackwick — our base for the next few days while we investigate the Dwarfie Stane.

After our visit to Yesnaby, Ronnie and I spent the remainder of the afternoon worrying about whether the Orkney skies were going to clear. As evening approached, we made our way to the chambered cairn at of Wideford Hill in light rain and beneath heavy cloud.

After landing in Stromness we had time for a wander along the spectacular cliffs at Yesnaby.

Ronnie Scott and I have once again headed north and crossed the Pentland Firth aboard the MV Hamnavoe to Orkney. We’re here for two weeks of archaeo-optics fieldwork on Hoy and the Mainland.

Following sunrise observations inside Camster Round earlier this morning, Ronnie and I spent a few hours tramping around a group of thirteen chambered cairns which overlook the Loch of Yarrows.

After finishing dawn observations at Camster Round earlier in the day, Ronnie and I thought it would be interesting to compare this site with the Cairn of Get passage cairn nearby.

Ronnie Scott and I dashed up to the north of Scotland this morning to view the rising sun from inside the chambered cairn of Camster Round.