Here are a few suggestions for your next trip from Sernada do Vouga

In 3 hours, you can reach Porto, Coimbra, Vila Nova de Gaia.

In 4 hours, you can reach Braga.

In 5 hours, you can reach Lisbon.

In 6 hours, you can reach Amadora, Queluz, Vigo.

In 7 hours, you can reach Setúbal, Cacém, Évora, Rio de Mouro.