If your trip to Isawa Onsen is all sorted out but your itinerary is a little on the empty side, let us give you a helping hand.Give that rental car a breather and start using those legs. Not far from this neighborhood's center, Mars Yamanashi Winery is worth a look. More adventure is waiting for you at Daizokyo-ji Temple and Yamanashioka Shrine, which are also close by.