Gardaí said they had responded to a public order incident at Harbour Road, Skerries, on Saturday night.
The 79-year-old had headed out into dense woodland near the remote village of Pilvo on Russia's Sakhalin Island.
'He was very serious and had a solid way of thinking.'
The billboard shows Trump, with his hair sticking up wildly and hands crossed upon his large belly, dead.
Astypalaia relies on bottled water for drinking and didn't receive much of the rain which drenched the rest of Greece this winter.
