| 
 Address 
 | 
 Lake Mashu First Observation Deck, Teshikaga-genya, Teshikaga-cho, Kawakami-gun, Hokkaido 
 | 
| 
 Phone number 
 | 
 +81 15-482-1530 
 | 
| 
 Open 
 | 
 8:30 – 17:00 
 | 
| 
 Capacity 
 | 
 34 seats 
 | 
| 
 URL 
 | 
| 
 Address 
 | 
 Lake Mashu First Observation Deck, Teshikaga-genya, Teshikaga-cho, Kawakami-gun, Hokkaido 
 | 
| 
 Phone number 
 | 
 +81 15-482-1530 
 | 
| 
 Open 
 | 
 8:30 – 17:00 
 | 
| 
 Capacity 
 | 
 34 seats 
 | 
| 
 URL 
 |