The previous writer said the drive was boring. I must say the opposite. We enjoyed it tremendously. There is perhaps no other drive like this anywhere in the world. You get to drive right above the ocean which really does sparkle on a sunny day. Seeing the birds was great. The tropical vegetation is wonderful. There are lots of places where you can stop and have a walk. So many islands are there for you to explore. We drove through a few residential neighborhoods just to check out the wonderful houses and the unique architecture. Duck Key was especially enjoyable but a bit too spendy for us to think about buying any local property. It was fun to see the boats at the shore and in the many canals. Plus the Keys is not just Key West but many other islands which are also popular. We had a great lunch on Marathon coming in and on Key Largo going back. I suppose that if you just drove straight through it can perhaps be done in two hours. We took our time, enjoyed the scenery, smelled the flowers, and had a ball.