This four-star, all-inclusive resort is divided into two sections, with the adult-focused Harmony section far less exciting than the family-friendly Splash wing. That’s because the Splash side features St Lucia’s largest water park. It’s all about the slides, waterfalls and merrily bobbing along the lazy river in a rubber tube. The only problem is stopping the big kids – Mum and Dad – from hogging all the fun stuff.