Marker for Gold

It was a beautiful day, until I walked Ollie this afternoon and the sky suddenly started to blacken. I went out when I knew it was low tide to take some shots of a commercial Oyster Farm. The beds make interesting shapes on the water.
However, on the approach to the jetty there was a faint half rainbow over the inlet. I started to take a few shots and the sun came out. Suddenly it was a bright full rainbow, but I couldn't get a full shot in view. I tried to stitch together a panoramic from two shots but the join was noticeable so this is the best of the rest !