Below is our starting point, the bay at Gullane. It's a lovely beach, very popular with dog walkers. This is looking east, the direction Tilly and I were going to take.
Looking back, up the Forth, the unmistakable bulk of Arthur's Seat, and Edinburgh's skyline, just clear enough to see.
For most of the walk, there is the choice between wandering along a series of beaches, or following a path along the top of each.
There's no denying it, at heart I am a shell-seeker. I have loads of shells at home. We lived on one of the out islands in the Bahamas for a just over a year, a long time ago, and …