Ideas for calm riding spots within 50kms of Kochi

I used to go on long rides on saturdays just to resent my mind and take a break. But around seven months back I met with an accident which has left me in a not so great spot health-wise. Now I've started riding again but I am terrified of long distance rides at the moment. Can you suggest me some good, less explored (no crowd in the morning) spots within a 50km range of Kochi? I've been to Bhoothathankettu, Ezhattumukham, Athirapalli, and Aluva riverbed areas multiple times. Any help would be appreciated.