With a capital whose name translates as 'Abode of Love', there has to be something going on in the Friendly Islands that we don't know about. Most Tongans are warm and welcoming, but it's difficult to see how they could be otherwise when home is a series of lush Pacific islands, bordered by unbelievable beaches, surrounded by coral reefs, basking under a tropical sun. That's hard to beat.
Currency
The local currency used in Nuku'alofa is the Tongan Pa'anga. Travellers cheques and credit cards are accepted by the larger hotels but most guest houses accept only cash.