I planned to visit Kranji while on a buisness trip to Singapore. I would recommend doing the Changi musuem first and Kranji second. I done Changi on the morning and Kranji on the afternoon. The easiest way to get around is by buying the tourist MRT card as the two places are oppersit ends of the Island. You can get all the directions of the two websites but they really are easy to get to, the only thing I would say is Kranji is not signposted from the station. Just ask the taxi for the war memorial as they dont call it a cemetery. The taxi rank is next to the bus stops to the left as you come out of the station it is only five minutes from the station but to far to walk. When I came out of the cemetery I just crossed the main road and flagged a taxi down. Take some water with you as the sun is pretty relentless.
I would like to thank the commenwealth war graves commision for the amazing work they do . This place is immaculate like all the other locations they look after.