Yea, I'm new to cycling too, my dad got me into it, we've being doing laps around key biscayne. That key biscayne bridge is a monster and will get you in good shape. I would definate suggest doing this. We start in Pinecrest by Pinecrest Elementry (btw there is a big group that leaves from there on Saturday Mornings), then we ride through the grove and onto key biscayne...