Torrents calmed by reef
Cheeseball haiku poetry attempts aside, Rodrigues is a pretty relaxed place to visit. It's a small island, but has both volcanic and limestone origins and a huge lagoon of clear blue water. Interestingly, most of the people here seem to share an ancestry more closely associated with mainland Africa than in Mauritius - despite being the most remote of the Mascarene Islands. Also unlike Mauritius, the whole of the island is very hilly, but somehow over 40,000 people live here tucked into little folds in the green valleys. It's nice.
Secluded beaches, quiet island life, friendly people, amazingly tasty local honey (award winning apparently) and octopus!