Don a hard hat for a 45-minute tour of St-Nectaire's Roman baths, off place de la Paix in a cave that glimmers with damp limestone. Two thousand years ago these human-made caverns were used as a spa for their naturally 22°C, mineral-rich waters. Little remains of the Roman baths, rediscovered in the 19th century, though it's an interesting subterranean ramble.
There are usually five tours daily (11.30am, 2.30pm, 3.30pm, 4.30pm and 5.30pm).
