Slater Park is a small, tranquil park in Mercer Island perfect for peaceful strolls and relaxing moments by the water. Visitors appreciate the clean environment and accessible rocky water access, which is great for swimming and family outings. The park also features picnic spots and is near a dog-friendly swimming area, enhancing its appeal for diverse visitors. To fully enjoy the calm surroundings, guests are advised to bring bug spray during warmer months. This hidden gem is ideal for those seeking a quiet nature spot close to home.