The 341m summit of Monte de Santa Trega is a 4km drive or 2km walk (via the PRG122) from town. On the way up, stop to poke around the partly restored Iron Age Castro de Santa Trega. At the top, you'll find a 16th-century chapel, an interesting small archaeological museum on castro culture, a couple of cafes and souvenir stalls – and truly magnificent panoramas up the Miño, across to Portugal and out over the Atlantic.