Here are a few suggestions for your next trip from Ferrol
In 3 hours, you can reach Vigo.
In 6 hours, you can reach Madrid, Porto, Vila Nova de Gaia, Valladolid.
In 7 hours, you can reach Braga.
In 8 hours, you can reach Valencia, Zaragoza, Coimbra, Alicante, Córdoba, Gijón.
Book - Trainline
Book - SNCF Connect
Book - Deutsche Bahn