Koushinetsu in Astronomical observation

• Age 3～Age 100
• 1～2 hours

Aoki Lake is a lake of stars where the stars shine all over the night sky and are reflected all over the surface of the lake. Aoki Lake Starry Sky (Night) Lake Walk Board a Voyager Canoe on Lake Aoki and take a walk under the stars (at night if it is cloudy). An astronomy guide will explain the stars, star clusters, nebulae, constellation names, and the myths associated with them. We will do this even if it is cloudy and the stars are not visible. When you see the beautiful stars at night at home or on a trip, we will explain it in an easy-to-understand way so that you can remember the explanation of the astronomy guide. A new moon is perfect for stargazing as there is no moonlight. Seven-color firefly art appreciation Enjoy rainbow-colored artistic fireflies on the lake. The artistic fireflies that appear through fun experiments and play will unfold your own story in a huge picture story of stars set on Lake Aoki. Phone reservations cost 3,800 yen per person. Fireflies can sometimes be viewed at Lake Aoki from early July. You may be able to see fireflies at Lake Aoki in September. 2025 4/28 New Moon 5/13 Full Moon (Flower Moon) 5/27 New Moon 6/11 Full Moon (Strawberry Moon) 6/25 New Moon 9/8 Total Lunar Eclipse, Full Moon (Corn Moon, Harvest Moon) 9/22 New Moon 10/6 Harvest Moon 10/7 Full Moon (Hunter's Moon), Sixteenth Night 10/10 Tenth Night 10/21 New Moon, Orionid meteor shower at its peak (best time to see is from midnight to dawn several days before and after) 11/2 Thirteenth Night 11/5 Full Moon (Beaver Moon) (closest full moon to Earth in 2025), Southern Taurid meteor shower at its peak (best time to see is from late October to early November). Additional fee: Moon Viewing Cruise: 2025 Mid-Autumn Moon (October 6th), 10/7 (Juusokuya), 10/10 (Tokaya), and 11/2 (Third Night) are for one person (ages 3 and over)

• Nightlife
• For Groups

• Age 3～Age 100
• 1～2 hours

You can enjoy the faint beautiful glow of the stars and the small love lights of the fireflies from a boat on Lake Aoki. This event will be held even if it is cloudy and the stars are not visible. Flash photography is prohibited when watching fireflies. It has a negative effect on the fireflies. Why don't you come and see it too? We will guide you. The faint beautiful glow of the stars that shine from tens of thousands of light years away and the small love lights of the fireflies are playing out in a big picture story on the mirror-like heart-shaped lake "Lake Aoki". In mid-August, the bright light trails of the Perseid meteor shower will be added, and you can see the "breathtaking story" from the Voyager Canoe. The Perseid meteor shower has many flashy, bright, high-speed meteors, and they appear stably every time. 2025 Starry Sky 7/11 It is said that watching the full moon (back moon) will improve your health and work luck. 7/25 New Moon 7/31 Midnight to dawn, the southern Delta Aquarids meteor shower reaches its peak 8/9 Full Moon (Sturgeon Moon) 8/13 Around 5:00, the Perseid meteor shower reaches its peak (best viewing time is from midnight on the 12th to dawn on the 13th) 8/23 New Moon During peak season, we may use inflatable canoes and rafts. Reservations by phone are 4,000 yen for ages 3 and over.

• For Groups

• Age 6～Age 120
• 2～3 hours
• 18:00

An exciting walk through the snowy mountains on a quiet night! A quiet and mysterious snowy field at night. This is an exciting snowshoe tour where you walk relying on the light of the lights. On nights when there is a full moon, you can see a fantastic sight illuminated by the moonlight! Winter nights are the quietest nights of the four seasons. Why not have an unusual and exciting time like when you go out in the middle of the night? *We can also pick you up from nearby accommodation facilities.

• Pickup Service
• With Pets
• For Rainy Days
• For Groups

• Age 6～Age 120
• 2～3 hours
• 18:00

An exciting walk through the snowy mountains on a quiet night! A quiet and mysterious snowy field at night. This is an exciting snowshoe tour where you walk relying on the light of the lights. On nights when there is a full moon, you can see a fantastic sight illuminated by the moonlight! Winter nights are the quietest nights of the four seasons. Why not have an unusual and exciting time like when you go out in the middle of the night? *We can also pick you up from nearby accommodation facilities.

• Pickup Service
• With Pets
• For Rainy Days
• For Groups