Hi Rob,
A finca or a flat ....... that is a huge difference. Do you like gardening? Do you like to have a lot of land? Do you like to go to shops or not? Do you like to grow your own veggies, bake your own bread, have chickens? When you like that, a finca is the answer.

A finca can be more difficult when you are 70+. It all depends from the finca of course.

We live in Vinaros. Not in a flat, but in a house. The advantage is that all the shops are close by.
Peniscola is very nice, but in the winter it is dead. Vinaros is alive all year rond, like Tortosa.

Succes with house/flat/finca-hunting!