Piscinas Oceânicas de Porto Martins

Piscinas Oceânicas de Porto Martins are natural swimming pools formed by volcanic rock formations along the coastline of Terceira Island in the Azores. The facility contains several distinct swimming sections and offers changing rooms, showers, and parking areas for visitors.

These pools developed in the early modern period from local traditions of creating protected swimming spaces within natural rock formations. The practice grew from the island's connection to maritime life and coastal activities.

Locals gather here regularly with family and friends, making the pools a social hub throughout the year. The dark volcanic rocks and water form a familiar backdrop for how people spend their leisure time.

The site is easily accessible and typically has lifeguards on duty from June through September. Bring towels and a change of clothes, and visit when the weather is clear and water conditions are calm.

Ocean water continuously flows through channels cut into the rock barriers, creating a natural water exchange system. This geology means the pools stay fresh without any mechanical cleaning needed.