Water in the Cook Islands is well-treated and safe to drink right from the tap.
The Cook Islands treat their water through filtration and UV disinfection, particularly in Rarotonga. The system is well maintained and safe for consumption.
Quick Overview
Tap Water Concern: Our Advice Tap Water Drinkable? ✅ Yes, it’s safe to drink Common Risks: Minimal — high quality standards Brush Teeth? ✅ Yes, no concerns Wash Fruits/Vegetables? ✅ Yes, safe to use tap water Use Ice in Drinks? ✅ Yes, generally safe in restaurants Safe to Shower? ✅ Yes Filter Bottle Needed? ❌ No, not necessary
This advice is supported by CDC and WHO health recommendations, plus local water quality data.
Worried About Tap Water? Consider Using a Filter Bottle
If you’d rather not take chances with the tap water, a filter bottle is a smart and affordable solution. We don’t sell these ourselves, but we’ve reviewed the most effective and traveler-approved options to help you stay safe, reduce plastic use, and avoid unnecessary bottled water costs—scroll down to see which ones we recommend.
Health Risks for Travelers
Even in countries where tap water is considered safe, it’s still possible for travelers to experience mild digestive issues. Your body may not be used to the mineral composition, local bacteria (even the harmless kind), or differences in water treatment methods.
Here are a few minor risks and factors worth noting:
- Mineral levels may be higher or different than you’re used to, which can cause temporary discomfort for some travelers.
- Aged infrastructure in older cities or hotels could affect water clarity or taste, even if the water itself is safe.
- Filtered water may still be used in restaurants, especially for ice or washing produce, as an extra precaution.
- Public water systems vary by region; tap water in cities is typically highly regulated, while rural areas may be more variable.
- Travel fatigue or a change in diet can also affect how your body reacts to new water sources — not necessarily the water itself.
In general, the health risks are low in countries with safe tap water, but it’s still smart to be aware of local conditions and trust your own comfort level.
If you experience persistent symptoms while traveling in the Cook Islands, consult a local doctor or pharmacist. In many tourist areas, English-speaking care is available.
More About Tap Water in the Cook Islands
On Rarotonga, most of the water comes from the Te Mato Vai project, which collects rainwater and filters it using sand and gravel filtration systems. No chemical treatment is added, so the water may still contain bacteria.
Locals often boil their water or use UV filters to make it safe to drink. On the outer islands, water systems are less developed, and rainwater is usually stored in tanks without further treatment. Travelers are strongly advised to ask their accommodation about water safety and use bottled water if needed.
Bringing a portable water filter is a great idea, especially if you’re exploring more remote areas. Being mindful of your water use also supports local communities, which often deal with limited water resources.
FAQs About Tap Water in the Cook Islands
Is it safe to brush your teeth with tap water?
Yes, you can safely brush your teeth with tap water in the Cook Islands—no special precautions needed.
Can I use tap water to wash my face?
Yes, the water here is clean and fine for washing your face, shaving, or rinsing.
Is it safe to use ice in drinks?
Yes—ice made from tap water in the Cook Islands is totally safe.
Can I shower safely with tap water?
Tap water is clean and safe for all hygiene, including showering.
Want to avoid unknown minerals or chlorine while you’re abroad? A travel-size shower filter might be worth it. It attaches in seconds—unless the showerhead’s built into the wall, which unfortunately means you’re out of luck. Many travelers swear by this one. Click here to view the latest deal.
Can I wash fruits and vegetables with tap water?
No risk here—washing with local tap water is common and safe.
Is bottled water expensive in the Cook Islands?
It’s not very expensive, but you can skip it since tap water is safe to drink.
The Cook Islands are often explored along with French Polynesia, Tonga, or New Zealand. Tap water access varies between islands—be sure to review each stop.