In 2026, the tap water in St. Martin (the French side) and Sint Maarten (the Dutch side) is considered technically safe to drink, but many travelers and even locals prefer not to. The island’s water supply is primarily produced through desalination, which is perfectly sanitary but often has a "flat" or slightly metallic taste that some people find unpleasant. Furthermore, while the water leaves the processing plant clean, the age and condition of the pipes in older resorts or villas can introduce sediment or a slight chlorine odor. For this reason, most 2026 visitors opt for bottled water for primary hydration, though using tap water for brushing teeth, washing fruit, or cooking is completely fine. If you are staying in a modern luxury villa in 2026, it likely has its own carbon-filtration or UV-purification system, making the tap water indistinguishable from the bottled stuff you would buy at the Super U or Carrefour.