The customs checkpoint between Johor Bahru and Singapore is one of the busiest in the world in terms of passenger traffic. The relationship between Johor Bahru and Singapore is deeply intertwined. By riding a jet ski across the Johor Strait, you can admire the scenery and architecture on both sides, and even pass beneath the RTS Link - a major infrastructure project between Malaysia and Singapore in recent years - witnessing the dawn of a new era!