The bike trip with Key Lime Bike Tours (Guide Sara Goodwin-305-340-7834) was the best excursion I have ever had there. Very easy ride.
Paradise Beach. Rode in Taxi for $4.-no problem getting taxi or coming back. Beach is okay, but there are no places to go for liquid refreshment-all the hotels are guest only.
Did kayak trip -- was just average. The Snorkelling was great: many fish-the most I have ever seen and I have done quite a bit of snorkling.