From this point the Prince motored through the town to the splendid wide promenade that borders the Canadian side of the gorge, and spent half an hour watching the fascinating play of falling water and spray in the narrow cauldron of the Horseshoe. He stood a foot away from the point where the water leaps in its magnificent and enigmatic curve into the tortured pool below. Green at the curve, the water is a mass of curdled white in the strong lights as it falls. Beneath, the face of the water is a passionate surface of whirlpools and eddies and tossing whiteness. From the tremendous impact of the drop a column of spray shoots and curls high up in the air. It towers quite six hundred feet above the surface of the water, and it is hard to believe that enduring mass of spray comes from the fall; in the distance one is convinced that it is steam arising from some big factory. On the next day (Sunday) the Prince saw the Falls in their every phase. He walked up-stream above the Horseshoe to where the Niagara River jostles down over a series of ledges in the grand and angry Canadian Rapids, a sight as tumultuous and as thrilling in its own fashion as the Falls themselves. He visited the big, white stone power-house to examine with the greatest interest the machinery that traps the tremendous latent power of the plunging water, harnesses it, and so turns the wheels of a thousand industries, and lights hundreds of towns. Partly walking, partly riding in a car of the scenic tramway, he followed the line of the Falls and river downward to where the Whirlpool Rapids curdle and eddy within the deep walls of the gorge. Over on the American side he saw the castles and keeps of modern industry: power-houses and factories, springing up from the very rock of the cliff, and almost forming part of it. On the Canadian side the people have not let their utilitarian sense run away with them to such an extent. Where America edges the gorge with commercial buildings, Canada has constructed her beautiful promenade, which continues the comeliness of the Falls Park through a pretty residential district. America has Prospect Park and the very beautiful Goat Island Park on its side, but these are not extended along the gorge. Below the Whirlpool Rapids the Prince descended to the level of the river; later, he came to the top of the gorge again, and crossed, swinging two hundred feet above the water on the spidery ropes of the aerial railways, the great pool at the end of the river canyon, into which the pent-up water pushes swirling before turning at right angles towards Lake Ontario.