My fiance and I will be going on our honeymoon in May. We are starting in Rome, traveling to Florence, finishing our trip in Cinque Terre.

Is 3 days in Cinque Terre enough? Can anyone recommend a luxury hotel on the water?

I spent 5 days in Cinque Terre and managed to see most of what I wanted to see. It is a PERFECT place to end a honeymoon! The towns are linked by rail and it is quick and easy to visit more than one town per day. I stayed in a BEAUTIFUL cliffside B&B that I highly recommend called
Il Parco B&B
http://www.ilparco.com/bed-breakfast-en.htm

Loved this place in Manarola--

http://www.torrettas.com/

Look at the Porta Roca in Monterosso.

Three days is plenty. You will have time to see the towns, hike and relax.

3 days is plenty. Eat pesto. Assume you will return.

Let's be careful out there!

3 days will do. Get there early and leave late. See more detailed response under Amalfi or Cinque Terre tag.