Head to the Marvellous Rock for an eagle-eye panorama of Cilaos. It's accessible on foot or by road. From Cilaos, take the road to Bras-Sec. The turn-off to La Roche Merveilleuse is signposted on the left, after about 2km.
Bring a picnic – the setting is enchanting and there are a few kiosks (wooden shelters) to protect picnickers from any rain.