Politics of Tonga takes place in a framework of a constitutional monarchy, whereby the King is the Head of State and the Commander-in-Chief of the Armed Forces. Tonga's Prime Minister is currently appointed by the King from among the members of Parliament after having won the support of a majority of its members. Executive power is vested in the Cabinet of Ministers. Legislative power is vested in the King in Parliament, and judicial power is vested in the supreme court.
Tonga is lively well into the evening, generally becoming suddenly very quiet at around 23:00. Expect to see people walking around until late. Beer and liquor are available from many outlets, including Fijian, Australian and New Zealand imports to complement the local brews. If you are keen to check out native drink, try Kava (something like liquid novacaine) at least once.