Key West Florida day trip

Definitely not a day trip from Miami to Key West. We spend a month in Marathon in the winter. It is a good 2 hours up to Miami from Marathon and it can take 2 hours to KW if traffic is heavy from Marathon. KW is very cool just to walk around the dock area alone let alone Duval and it's side streets. Also great eats can be had at BO'S near the docks. And remember if there should be an accident with a death involved any where in the Keys you can be stuck for several hours cause there is no other road in or out but hwy 1. You don't say what you're driving- an option is to drive to Marathon spend a couple nights in your unit at Knights Key CG at 7 mile bridge and drive dingy a couple times to KW to really enjoy KW. We really enjoy the keys a lot, hope you will also.