Find image path

Hi, I am taking a picture with the camera which is saving with the relative path in a subfolder (Named: imgFolder). After that I want to load that image.

I tried to load it from the PCL project and fail to do it, now I am trying to load it from the android project but I can't either. In android I am trying to check if the file exists and it return false. This is the code:

In Android project:

private void test()
{
    var imageName = "photo.jpg";
    var documentsPath = Path.Combine(System.Environment.CurrentDirectory, "imgFolder");
    var path = Path.Combine(documentsPath, imageName);

    if (System.IO.File.Exists(path)) return true;
    else return false;
}

how can I find the adecuate path to the image?