Kochi, June 9, 2009 The Kerala Shipping and Inland Navigation Corporation has begun a ‘rain cruise’that would take people on a boat tour of over 14 islands lying north of Kochi city.There will be two cruises daily – at 10 am and 2.30 pm.Kerala is known for its unique experience of boat cruises – the soothing kettuvallam ride along the backwaters – made especially wonderful during the monsoon.