As a standard astronomy enthusiast, Mount Moneyji is a must-see place, where there is one of the purest stars in the world, and volunteers give astronomical explanations at night, which is a worthwhile trip. There are two small tips. If you want to see the sunset at Keck Observatory on the top of the hill, you must borrow the Four Drivers to go up the hill as far as possible before and after sunset. You can just go back to the tourist center to see the stars after sunset at the top of the hill.