The Tokyo Waterfront Area Rapid Transit (TWR) is a transit system in Tokyo, Japan, designed to connect the city's waterfront areas, including the popular Odaiba district. It operates primarily on elevated tracks and provides a convenient means of transportation for both residents and tourists. TWR consists of two main lines: the Ariake Line and the Yurikamome Line. The system is known for its automated trains and scenic views of the Rainbow Bridge and Tokyo Bay, making it a popular choice for those exploring the waterfront attractions.