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Keya (screwpine) bushes on Saint Martin's Island

Drinking water on Saint Martin's Island: what to know

Photo: Muntasir du (public domain), via Wikimedia Commons

The island depends on groundwater, and a study found germs in many samples. Here's how to stay safe and cut plastic at the same time.

Saint Martin's is a small coral island with no river, so water is a real concern. Here's what's known and how we handle it at El Marena Eco Resort near Chera Dip.

Where the water comes from

A University of Dhaka study found the island relies only on groundwater, from shallow aquifers 1 to 7 m below the ground. Chemically it was suitable for drinking, but E. coli bacteria were found in 58% of samples in the dry season and 44% in the wet season, mainly blamed on septic tanks from unplanned building (Dhaka University Journal of Earth and Environmental Sciences).

Keya (screwpine) bushes on Saint Martin's Island
Keya (screwpine) bushes on Saint Martin's Island · Photo: Muntasir du (public domain), via Wikimedia Commons

Staying safe

  • Drink bottled or properly treated water, not water straight from a well or tap.
  • Brush your teeth with bottled water if your stomach is sensitive.
  • Eat food that's freshly cooked and hot; go easy on raw salads and cut fruit.
  • Pack ORS in case of an upset stomach.

At El Marena

Bottled drinking water is free for our guests. To cut down on plastic, bring a reusable bottle and fill it from the larger bottles rather than buying lots of small ones.

Using water carefully

  • Keep showers short: the island's groundwater is limited.
  • Turn taps off properly.
  • Take empty bottles back to the mainland or put them in the resort's bins.

See also our medical help and packing list articles.

All articles

FAQ

Questions and answers

Can I drink tap or well water on Saint Martin's?
We wouldn't. A study found E. coli in many groundwater samples. Drink bottled or treated water.
Does El Marena give drinking water?
Yes, bottled drinking water is free for guests.
Where does the island's water come from?
Groundwater from shallow wells, 1 to 7 m below the ground.
Saint Martin's Island travel guide

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