
Guide
Oiso Shiroyama Park
9 min readOverview and Highlights
Located in Oiso Town, Naka District, Kanagawa Prefecture, Oiso Shiroyama Park is a beautiful destination where history and nature blend seamlessly. The park was developed using the former sites of the Mitsui family's villa and the residence of Shigeru Yoshida, a prominent figure in Japanese political history. The vast grounds feature traditional Japanese architectural styles and exquisite gardens, offering visitors a sense of serenity. Whether you are looking for a quiet walk in nature or a deep dive into historical aesthetics, this park provides a refreshing escape.
Historical and Cultural Background
The park's identity is deeply rooted in the grand estates that once stood here. It is divided into the former Mitsui family villa area and the former Shigeru Yoshida residence area. Local lore even suggests that the area was once known as "Koiso Castle," adding a layer of historical depth to the landscape. Today, these former private estates have been preserved as public spaces, allowing visitors to experience the cultural heritage of the region while enjoying the natural surroundings.

Key Attractions
The park is divided into two main areas: the "Former Mitsui Villa Area" on the mountain side and the "Former Yoshida Residence Area" on the seaside. In the Mitsui area, you can experience traditional culture at the "Shiroyama-an" tea house or visit the Kitakura Gallery and the Oiso Town Local History Museum. An observation deck also offers wonderful views of the surrounding landscape. In the Yoshida area, you will find a statue of the statesman Shigeru Yoshida, his former residence, and a stunning Japanese garden. Each area offers a unique atmosphere and different architectural charms.
Seasonal Recommendations and Best Times to Visit
The park showcases the beauty of Japan's changing seasons. From spring to summer, the lush greenery is particularly vibrant and perfect for walking. The rose garden is another highlight, offering beautiful blooms depending on the season. We recommend visiting in the morning to enjoy the crisp, fresh air, or in the afternoon to see the gardens bathed in soft, warm sunlight. The changing colors of the plants throughout the year make every visit a new experience.

Activities and Experiences
Beyond simple strolls, the park offers rich cultural experiences. You can feel the essence of traditional Japanese space while viewing historic structures like the "Shiroyama-an" tea house. The exhibition facilities also provide a way to connect with local history. It is an ideal place for a quiet cultural exploration, observing the seasonal flora and the intricate details of the historic buildings.
Surrounding Area
The area around the park is dotted with facilities that help you understand the history and culture of Oiso more deeply. You can explore the local history through the Oiso Town Local History Museum or experience the atmosphere of Meiji-era garden estates. The peaceful vibe of the Shonan region makes the surrounding streets and natural landscapes a wonderful place to explore.
Essentials: Clothing, Gear, and Etiquette
As the park covers a large area, we strongly recommend wearing comfortable walking shoes. It is also a good idea to carry water for hydration during your walk.
- *Payment Methods**: If you use any specific facilities within the park, please prepare cash (please check individual facility details).
- *English Support**: While there are information signs, detailed English-language support from staff may be limited.
- *Reservations**: If you are visiting with a large group or wish to use specific facilities like the tea house or a guided tour, advanced booking may be required.
- *Photography**: Photography is permitted for personal enjoyment, but please respect the rules and maintain good etiquette.
- *Accessibility**: While there are accessible entrances and parking lots, some parts of the park may have uneven terrain or steps due to the natural landscape.