Snorkel. The beaches here receive regular visits from lots of different kinds of fish. Younger kids enjoy exploring the rockpools. Or check out the Underwater Sculpture Park, a submarine gallery of contemporary art created with eco-friendly intent, to relieve the pressure divers inflict on the natural reefs. You can see it by scuba-diving or snorkelling, or from a glass-bottomed boat.
Visit St George’s, one of the loveliest towns in the entire Caribbean, with a gorgeous harbour area and a bustling small town just behind it.
Try river-rafting on the Balthazar, a 45-minute drive from St George's; kids aged 5+ can take part.
Walk in the Grand Etang National Park taking up much of the centre of the island – it's incredibly green and lush, with lakes, waterfalls and monkeys.
Head for the glorious 11km stretch of white sand that is Grand Anse Beach, where it’s easy to find your own space. Seek out the little coves along the coastline, backed by palm trees where you can relax in the shade while the kids play.