At a loss on what to do, when you have a few hours to kill and are in Kuala Lumpur for a day or two? Well, take a ride on the Kuala Lumpur (KL) Hop-On and Hop-Off city tour. I like to call it Ho Ho Ho…! (Sounds like Santa Claus's laughter). This double-decker bus service takes the scenic route around the Kuala Lumpur city centre and passes by 42 main attractions.