On 27 April, there were still some 800 men of the armored brigade located at Rafina, which was about ten miles north of the action we have been following. They had no artillery left, since all the guns were destroyed. During the day on 27 April, the men of the armored had gotten into defensive positions close to the beach whch kept them hidden. The group included about 250 Rangers at the left end. There were also some anti-tank gunners in the middle, along with the New Zealand cavalry. Early on 27 April, they observed German aircraft bombing the vehicles that had been wrecked. These were "in the hills at Rafina". The German aircraft also bombed the village. They flew over the hidden men, but did not see them. Some men from the anti-tank regiment took charge of a Greek caique that lay in the harbor. Their lieutenant spoke "classical Greek". They expected that the caique could carry about 250 men. The other 600 men would head for Porto Rafti. There was a planned embarkatiom planned for Porto Rafti "that night".
There were Germans blocking the route to Porto Rafti to Rafina. The men headed for Rafina instead. The caique's engine had been sabotaged, but they could see a destroyer approaching Rafina, which proved to be the Havock. The destroyer's captain hard that there men at Rafina, so he headed there. They were able to load all 800 men onto the destroyer. They sailed from Rafina to Crete.
This is based on the account in "Greece, Crete, and Syria" by Gavin Long.