East of Pontedeume, the valley of the Río Eume is home to Europe's best-preserved Atlantic coastal forest, with beautiful deciduous woodlands and rare relict ferns. The 91-sq-km Parque Natural Fragas do Eume (http://parquesnaturais.xunta.gal/es/fragas-do-eume) has a helpful visitors centre, the Centro de Interpretación, 6km from Pontedeume on the DP6902 Caaveiro road. From here a paved road and an off-road path (the Camiño dos Encomendeiros) lead along the thickly forested valley to the beautifully sited old Mosteiro de Caaveiro, 8km further east.
With time and a vehicle it's well worth venturing to the park's further reaches. In Monfero, a few kilometres outside the park's southern boundary, you'll find a grander monastery, the Mosteiro de Monfero, with another visitors centre nearby. A few kilometres east from here you can access several well-marked walking trails within the park – particularly scenic is the 6.5km Camiño dos Cerqueiros loop above the Encoro do Eume reservoir.