In Episode 4, Annika takes Haldane to Dafnai to show him where she grew up. Last stop on their walk through the village before lunch is the house where Annika was born. They stand in the alleyway beside the house and in the screenshot below you can see Agia Triada in the background.
From looking around Google Maps, it looks like the below pin could be the spot where they were stood.
From using Google Earth Pro, you can see that it’s possible to mimic the angle in the screenshot above. This shows the church in the background in the right position, with the dome and smaller dome both visible, also in the correct position:
This will need an on-site visit to confirm, however from studying the village from above, the layout of the surroundings looks very similar indeed.
Who Pays The Ferryman? Locations Page 