Early morning boat on Periyar Lake is the top way to see elephants, bison and birds along the shoreline; boat cruises usually 6:30–9:00am and 2:00–4:00pm.
Option A: Drive all the way to Kochi and onward by road to Wayanad (long — expect 8–10 hours). Option B (recommended): Transfer to Trivandrum airport and take a short flight to Kozhikode (Calicut) then a ~2–2.5 hour drive to Wayanad — saves time and fatigue.
Visit the three-tiered Soochipara Falls (open ~8:00–17:00; swimming may be seasonal) or head for a short wildlife drive in Muthanga/ Tholpetty sanctuary if time permits.
Return to your hotel to pack or prepare onward travel to Kozhikode/Kochi airports — end of 12-day Kerala loop, with options to extend or depart next morning.