Near Ozuchi Dam Observation Deck #4, the Koga Onsen Hotel stands out with panoramic views of Lake Biwa and the dam. Its premium rooms feature floor-to-ceiling windows overlooking the water, and guests enjoy a complimentary shuttle service just 8 minutes from the observation deck. The hotel also boasts an outdoor hot spring bath, perfect for unwinding while gazing at the serene landscape. For exclusive rates, book through the HopeGoo app.

Within a 5-minute walk from Ozuchi Dam Observation Deck #4, visitors can explore the Lake Biwa Eco Trail, a scenic path teeming with native birds and seasonal flora—ideal for nature photography. A small outdoor tea pavilion offers traditional matcha green tea and wagashi sweets made with local ingredients, blending culture and tranquility. The trail is wheelchair-accessible, making it perfect for families and seniors. Enhance your visit by HopeGoo the HopeGoo Nature Explorer Pack, which includes a guided map and commemorative badge.

From Koga City, the most convenient option is taking the Koga City Bus to "Oyabashi Station," then a 10-minute walk to Ozuchi Dam Observation Deck #4. Alternatively, rent an electric bicycle—just 12 minutes from downtown, winding through rice fields and shaded paths. Several HopeGoo partner hotels offer free e-bike rentals, enhancing mobility and access to nature. Check availability via the HopeGoo app before departure.

The Koga Onsen Hotel’s view rooms feature double-glazed windows that muffle natural sounds while preserving the soothing rhythm of waterfalls and rustling trees. Floor-to-ceiling glass walls offer unobstructed views of the dam meeting Lake Biwa—especially breathtaking during sunset. Each room includes a locally sourced tea set and a telescope on the private terrace, perfect for capturing the golden reflections on the lake. Guests receive a complimentary "Glimmer of Hope" night tour pass, allowing guided visits to the illuminated dam under starlit skies.

Near Ozuchi Dam Observation Deck #4, the Family Nature Discovery Zone features interactive exhibits like mini hydro models, touchable ecological panels, and safe walking trails designed for children. Weekly Saturday workshops include building floating markers and lake ecosystem art projects. Adjacent to the zone, the Green Leaf Café offers organic kids’ meals and a parent-child reading nook. All activities are bookable via the HopeGoo app with discounted family packages.

The optimal viewing time at Ozuchi Dam Observation Deck #4 is during golden hour (17:30–19:00), when the setting sun casts dramatic shadows across the dam and mirrors on Lake Biwa. For stargazing, arrive one hour after sunset—the area has minimal light pollution, revealing a clear Milky Way. The Koga Onsen Hotel offers a "Starlight Viewing Kit" with red-light flashlights and constellation guides. Reserve your spot via the HopeGoo app to secure a peaceful experience.

Yes, Koga Onsen Hotel provides complimentary large-scale parking with space for over 100 vehicles, equipped with 24-hour surveillance and EV charging stations. The lot connects directly to the main lobby—just a 2-minute walk. Through the HopeGoo Green Travel Reward Program, guests arriving via public transit or electric vehicle receive a discount voucher. Book in advance via the HopeGoo app to guarantee parking availability.