Crossing border for landing via The Thousand Island, ON

We received our stamped passports just last week, and the visa is valid only till 15th June.

We were thinking just as an option of crossing the borders via, The Thousand Islands... island group split between New York's North Country and Eastern Ontario. Does anyone have any experience on this border crossing for the first landing purpose. We were just thinking about this as we have been many times to Niagara & East of NY, I studied in Buffalo before I moved to New york city for work.. and just wanted to see if this time we could go North/ West of NY & cross from there.

Does anyone have any take on Rainbow bridge crossing via Niagara vs. The Thousand island via Watertown, NY.

Edit: Forgot to mention that we are returning back in a day or 2 and move later to Canada.