It was already a little past 4 p.m. It was regrettable that our departure from Niagara Falls had been delayed according to the transport company's convenience. I decided to visit one of the tourist attractions, castle-like Casa Loma firstly, because it was located relatively near my position at that time. According to my travel guide, it had been built as the residence of a Canadian military officer who had raked in a lot of money in running the hydraulic power plant at Niagara Falls. I remembered that I had seen a ruined factory from the sightseeing boat, the Maid of the Mist, on the previous day. I thought it must have been the power plant. When I reached the site, the sightseeing tour inside was over and I could only walk around the house. It was built on a hill and the second picture was the CN tower from the hill. It was the landmark of the landmarks in Toronto.
The time passed 5 o'clock, but the sun was high enough to continue wandering in the city and I headed for the waterfront. I didn't have any purpose. I just wanted to walk around the CN tower. I took the subway from the nearest station, Dupont, to Union Station, where I lost my way underground, but when I emerged outside and saw the magnificent view of the CN tower, I knew where I was.
convenience [U] (人にとっての) 都合のよさ, 便宜
at your convenience 都合のよいときに
hydraulic power generation 水力発電
decrepit 老衰した, よぼよぼの／老朽化した, おんぼろの