The tap water in Mallorca is officially classified as safe and clean to drink according to EU health standards, though its taste and mineral content can be polarizing. Most of the island's water comes from desalination plants and natural reservoirs, resulting in a "hard" water profile with a high concentration of calcium and a distinct chlorine taste. While locals often use it for cooking and coffee, many residents and tourists prefer the taste of bottled water for drinking. In terms of the sea water, Mallorca is world-famous for its crystal-clear bays and "Blue Flag" beaches. In 2026, the local government has implemented even stricter environmental controls to protect the Mediterranean coastline, ensuring that the turquoise waters of places like Cala d'Or and Platja de Muro remain pristine. You may occasionally see "Posidonia" seagrass on the shore, which is a sign of a very healthy and clean marine ecosystem rather than "dirt." Overall, whether you are drinking from a tap in Palma or swimming in a secluded cove, the water quality in Mallorca is among the highest in the Mediterranean region.