This is not a live sighting, but it is a tweet with some information about the Shetland Islands leg, so I thought I'd post it here.
Ari Shapiro @arishapiro · 31m
Guess I'm not the only American interested in Shetland. Apparently @AmazingRace_CBS just had contestants here cutting peat.
Ari Shapiro is a PBS international correspondent based in London. He is currently visiting the Shetland Islands and I imagine he's talked with people there who knew about the TAR 25 visit. I think we already heard about the peat cutting, but this is confirmation.