Beach lazing and swimming in the tropics is like a visit to an expensive day spa - the water’s warm and the gentle lapping swell lulls you to tranquil bliss. However, at Tunku Abdul Rahman National Park, a scatter of islands off the coast of Kota Kinabalu, there’s more than just relaxation therapy; for the few hours before beach time, you’ll be upright and learning about the jungle ecology of Pulau Gaya. On an easy two kilometre mangrove and rainforest walk you’ll learn of medicinal plants, unique adaptations and towering tropical hardwoods. Then you can hit the beach. And swim and snorkel and lull.