The original watercolours are on display at the 81st Society of Caithness Artists Art Exhibition running until August 13 in Thurso High School.
Exhibit 277, getting its first outing, states “A watercolour by HRH Duke of Rothesay. Abandoned Croft on the island of Stroma, Caithness.”
The painting is a breathtaking view looking out over the Pentland Firth which Prince Charles can see from his bedroom window in the Castle of Mey while on his annual holiday to Caithness.
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Stroma, from the Old Norse meaning 'island in the stream', has been a constant inspiration to the painter prince.
It is the second ruined cottage he has painted on the island abandoned by residents in 1962.
Exhibit 278 is also familiar territory for Charles. It is a moody view of Beinn A'Bhuird across the park at Invercauld near Brig of Dee, the next door estate to the Queen's Balmoral on Royal Deeside.
The Prince, taking time off from his holiday visited the exhibition last year and will do so on a biannual basis.
He is following in the footsteps of his grandmother, Queen Elizabeth, who was a regular patron of the arts exhibition in Thurso.
The prince is staying at her old home, the Castle of Mey near John O'Groats.