Visas: US citizens do not need visas for stays
of less than eight months. Visas are also not
required of citizens of Canada or the UK and Commonwealth who stay three weeks or less.
Visitors from most other European countries need passports but not visas for stays up to
three months. Air passengers must have a return or ongoing airline ticket.
Health risks: Sunburn, prickly heat, dehydration, heat exhaustion, heat stroke,
fungal infection, diarrhea, giardiasis, HIV/AIDS, tetanus, jellyfish
