Nagai Uminote Park Soleil Hill is a scenic leisure park situated in Yokosuka, Kanagawa Prefecture, Japan, offering a wonderful blend of outdoor recreation, relaxation, and family entertainment with views of the surrounding sea. The park features glamping cottages and accommodation options for overnight stays, a soothing bathhouse with ocean vistas, and an expansive athletic course for active visitors. Additional activities include a laser zone, a paddling pond, and seasonal craft and cooking workshops. Beautifully maintained flower displays bloom throughout the year, and the park hosts regular seasonal events to draw visitors back across the seasons. With dining facilities on site and opening hours from 9 AM to 6 PM daily, Soleil Hill positions itself as a place where guests can eat, play, stay, and connect with nature in a relaxed coastal setting.