On the Ferrol to Pontedeume section: Ferrol Cathedral, the 12th century San Martin de Xubia, the Church of Santa Maria at Neda, and the 12th century Parish church at Pontedeume were all delights.
On the Pontedeume to Betanzos section, the Ingles passes the Romanesque church of San Miguel at Breamo and the Church of San Martino at Timbre. Betanzos cathedral in the main square is impressive, but better still is the white stone Franciscan church further into
the city.
On the Betanzos to Hospital de Bruma section, San Estaban at Cos is a nice little church.
On the Hospital de Bruma to Sigueiro section, make sure you try to see the Church or San Paio at Buscas.
On the Sigueiro to Santiago section, the Ingles runs round the back of the church of Nosa Senora at Agualda.
not all of the above churches will be open, but often knocking on the vicarage, or house next door can elicit a key to the church, and then you have the place all to yourself.