Lake Placid, New York. Its 3 hours from ottawa. Awesome place. A weekend there will cost about $150 plus accommodation which is like another $100. Really the only pricy thing is getting gear for it. ie life jacket, wet suit etc. Also, prepare to destroy whatever skis you use for jumping. Landing on the water puts a huge amount of pressure on your skis, destroys the camber and makes them soft as hell. Often enough they'll just break in half.