In Hong Kong, bus enthusiasts and officials were thrilled as Citybus launched the city's first cross-harbor trip using a hydrogen bus, approved by the government for tunnel travel. The double-decker hydrogen bus embarked on its journey from Wah Fu Central Bus Terminus in the southern district, passing through major tunnels before reaching Sha Tin. Despite the excitement, some passengers noted weaker air-conditioning on the hydrogen bus, likening the experience to a sauna. Citybus's managing director announced the company's commitment to phasing out diesel buses by 2045 in favor of new-energy buses. Secretary for Environment and Ecology, Tse Chin-wan, and lawmaker Edward Lau Kwok-fan joined the historic trip, advocating for government subsidies to boost the adoption of hydrogen buses. This milestone event underscores Hong Kong's progress towards sustainable public transportation and signals a shift towards eco-friendly urban mobility solutions.