If you are going to Kranji Camp 2, use the exit at Yew Tee
station facing the shopping centre, and walk straight from
there.
Kranji Camp 3 is further towards the Sungei Kadut area, but it
is also along the same road as Camp 2. If you are not keen to walk
from the MRT station, take bus 302 and alight at the second bus
stop, and walk all the way straight towards Choa Chu Kang Way.