We have a 2 night stay reserved at the Lemon Tree Inn but are wondering if we should up it to 3. Arriving late afternoon on day 1 after a drive up from the keys, day 2 will see us taking a trip out on the Everglades, Is two afternoon / evenings enough to see all there is to see or are there other day time activities / things to see to justify the additional night? We don't generally lie about sunbathing but do like to be out in the sun, walking /strolling/ - particularly by the sea or sitting outdoors with a cold beer or glass of wine people watching. We are interested in hiring bikes if its a safe and relatively flat area to do so. We have heard Naples is expensive which is another of our concerns but is it anymore expensive than we expect the keys to be?