I apologize for short notice however that is the definition of "Impromptu" after all!
If you are interested try your hand making long exposure images, I am planning to photograph the Horseshoe Falls / Niagara Falls (Canadian side) this Saturday morning (Feb. 6). Sunrise is scheduled for 7:28 am however to attempt to capture the best light I plan to be setup to start working at 6:30 which is just after Nautical Twilight starts (6:28 am). The best light should be through to Twilight which is scheduled for 6:58 am. These events happen fast so we will work quickly through to when the sun rises above the horizon.
In terms of gear in addition to your camera as a minimum you will need a tripod and a remote cable release. While its not absolutely necessary, Neutral Density (3, 6, 10 Stop) and/or Graduated Neutral Density filters will be beneficial to extend the exposure time. If you don't have ND/GND filters, a circular polarizer will extend normal exposure times.
The weather is expected to ideal for a colourful scene. Dress warm and in layers so that you are comfortable.
Any and all are welcome to join me. I expect to be in the Table Rock / Horseshoe Falls area by 6:15 am and look forward to having some company. There are plenty of other opportunities in the area to photograph after the sun rises.
I’d appreciate an email if you are planning to join me.