monorail would be slowest since it would have to stop at MK Contemporary and TTC Before getting to Poly. You can walk , at least could as of last week. We did do the water taxi I from Gf to Poly, it was a quick ride but timing was such that we waited a bit for it to arrive. About. 5 to 10 min walk. If you are trying to make it back after receiving text from trader sams I’d hoof it and not risk an Uber delay or waiting on the boat , monorail.