Yyteri is a sandy sea beach near Pori in Satakunta, with a section reported for naturist use. Access is by road from Pori to designated beach parking, followed by walking across sand to the shoreline. Visitors seeking nude use should remain within the marked naturist area where indicated and wear textiles in other sections. Outdoor beach access is generally free, while nearby commercial services may charge separately, and the shoreline has no fixed opening hours. The practical season centres on July and August, when air temperatures are mildest. Even then the Baltic water remains cold, and wind can change comfort quickly. Midday brings the warmest conditions, while mornings and evenings are generally quieter. The beach is exposed, with little natural shade, so visitors should carry sun protection, wind protection, water and food. Seasonal cafes and kiosks may operate near the main beach, but provision in the naturist section is limited. Toilets and changing facilities are concentrated near the main services. Lifeguard presence varies by season and section, so swimmers should not assume supervision. Shallow sand extends into the water, but waves respond to wind and cold water can surprise swimmers even on warm days. Dogs are typically restricted on main swimming beaches in summer, so visitors should follow local signs and keep boundaries, safety rules and shared space in mind. Bus connections from Pori serve Yyteri in summer with reduced service outside the season, and parking demand is highest near the main beach during warm weather. Because facilities in the naturist section are few, planning for drinking water, snacks and weather protection helps. Visits often last a few hours for swimming, walking and resting.