Marrinup is a small locality in Western Australia, situated within the Shire of Serpentine-Jarrahdale. It is primarily known for its natural surroundings, including forests and bushland, which are part of the larger Jarrah Forest ecosystem. The area is popular for outdoor activities such as hiking and camping, attracting nature enthusiasts. The locality is also close to the Marrinup Conservation Park, which offers various walking trails and picnic spots. This park plays a significant role in preserving local flora and fauna, making it an important area for conservation efforts in the region.