There’s more to safety in Rarotonga than avoiding falling coconuts; especially onto parked vehicles. (Although, you really shouldn’t remain under coconut trees laden with fruit for extended periods of time.)  It is recommended that visitors to Rarotonga be vaccinated against hepatitis A and B, and tetanus. 

A common tourist’s ailment is stomach-ache, caused by drinking untreated tap water, and/or lack of hygiene surrounding hand-washing. Only drink treated or bottled water, which is safe and can also be delivered to your door. Food poisoning is rare, so don’t be afraid of sampling the local cuisine, especially fish and other seafood.

Live animals are a minor safety threat in Rarotonga, though dogs can be a major annoyance when walking or driving.  Dogs can run in front of cars unexpectedly.  Giant ants, and cockroaches  are commonly seen.  Pests can be avoided with sufficient precaution involving storage of food and secure disposal of household scraps.  Keep a bug spray/insecticide on hand where possible.

A final note of caution: when swimming, kayaking or sailing, look out for shallow-lying coral heads. Rarotonga’s lagoons are filled with exotic  corals that can cut your feet or even damage your boat. Stonefish are found around shallow silty lagoon floors at certain times of the year and can give extremely painful stings if trodden on. It is advisable to wear reef shoes at all times and to shuffle one's feet when entering shallow water to frighten stone-fish away. Jelly fish and blue-bottle are also seen on occassion.

At many beaches, it is illegal to fish, remove coral, shells and and live sea-creatures out of the water. In general, it is best to restrain the impulse to collect shells or pieces of coral here, because it is illegal to export coral or shell samples, unless a CITES permit has been obtained prior to departure.

There have been outbreaks of dengue fever over recent years. Authorities encourage busineses and residents to keep their properties free of mosquito breeding sites with spraying taking place on occasions. It's advisable to use mosquito repellant, particularly when venturing inland, or away from breezy coastal areas. Mozzies are most active at dawn and dusk, with the dengue mosquito being active during daytime.