The caves were amazing and large! Definitely worth a visit if you are going to KL. I wasn’t expecting the caves to be that large and vast. Incredible to climb up all those stairs. Batu Caves is a Hindu temple, and one of the most famous ones outside India.
To get to Batu Caves, take the KTM Komuter from KL Sentral up to Batu Caves (the northern-most terminus). The train station sits right outside the caves which is even more fantastic.