I'd been thinking about what to do with my stones, and had a couple of ideas: arrows pointing towards Andy and the boys at Ynys y Barri; a school of pebble fish along the water's edge, or waves... but then I started thinking about the tide charts and what time I needed to be there, and came up with Time & Tide, thinking of all of the times we had to wait for tides to set sail, or make it home, racing for the mid-day ferry out to the island and how both march on without regard for man.
I started collecting stones, and went to lay them out along the water. It was a bit squishy, so I moved back a bit and decided to let the tide come on my TIME. Naturally, Connor thought that right on top of my stones was the ideal location, but I managed to move him along and wait for the tide to start covering the letters.
As the tide came in, it brought some leaves and a feather. I think I will go back tomorrow and see if the pebbles stayed, or if the tide moved them around and they're gone.
Update: The pictures are now on the V&A World Beach Project's website. You can see the map here. Look for the pictures above.