I had a morning hike from my hostel near Nagasaki Station to Kazagashira Park and it took me around half an hour. Along the way I had to climb long flights of stairs through a cemetery. After passing through the cemetery, there are clear signs pointing to the observation deck at the summit. After I reached the top, I was rewarded by great views of the city and the harbour, without the crowds and noises that plague Mt Inasa. There is also a statue of Sakamoto Ryoma, a legendary warrior who played an important role in Japanese politics in the 19th century. As the park is located to the east of the city, a morning visit will give you better photos of the city as the sun is behind you.