The Pacific Islands span multiple currencies — the US dollar is accepted in some nations, while others use local currency (Samoan Tālā, Tongan Paʻanga, Papua New Guinean Kina and others); your tour leader will advise on cash needs at each destination. Bottled water is recommended throughout the region, and water should not be drunk from the tap. The climate is warm and humid across all islands, with intense sun — sunscreen, a hat and light, breathable clothing are essential. Tipping is not an embedded tradition in most Pacific cultures, though it is always appreciated where genuine service has been given. English is spoken alongside local languages across most of the nations on the itinerary.