The Wai-an Line (route code 0758, signed as route “21” on stop poles and in TDX) is operated by the Penghu County Public Bus and Ferry Administration and is the main urban bus route linking the main island of Penghu with Xiyu Township. Buses depart from Magong Main Station, pass through central Magong, and join County Highway 203, running along the western edge of Huxi Township through Xujia, Dingwan, and Tanbian, then through Zhongtun, Jiangmei, Chikan, Houliao, and Tongliang in Baisha Township. The bus then crosses the 2,494 m (8,182 ft) Penghu Bay Bridge into Xiyu and continues to the southwestern village of Wai-an. Depending on the sub-variant, the full route serves between 75 and 87 stops, covering central Magong along with villages, schools, and clinics across Baisha and Xiyu. For independent travelers without a scooter, this is the main public transport option for reaching Xiyu’s attractions, and it is also an important daily-life route for students and older residents heading to Magong for appointments and shopping.
Route Highlights
The Wai-an Line’s main draw is that a single ride covers most of Xiyu’s main sights: Tongliang Banyan, the Penghu Bay Bridge, Erkan Old Settlement, Daichi, the area around Xiyu Lighthouse and Xitai Fort, and Wai-an Fishing Port, known for its sunsets and night-fishing lights. Some runs detour through Xiaomen Village to stop at Xiaomen Whale Cave, or add stops at Qitou Aquarium (Penghu Aquarium) and Zhuwan Fishing Port, which is why several stop sequences are listed for the same direction on this page. This is normal and not a data error.
Because the line connects rural villages along with several police stations, clinics, and schools, riders are a mix: early mornings and evenings skew toward Xiyu commuting students and older residents, while daytime services are mostly visitors carrying backpacks and cameras. When traveling toward Wai-an, a window seat on the right side offers the classic northern Penghu seascape across the Penghu Bay Bridge.
When to Ride
To cover Xiyu’s sights in a single day, consider taking the 8:55 AM or 9:40 AM departure from Magong Main Station, arriving in central Xiyu around 10:30 AM — just ahead of the tour-bus peak at Tongliang Banyan and the Penghu Bay Bridge. For the return trip, the 4:00 PM or 5:00 PM departure from Wai-an is the most comfortable, catching the afternoon light at Wai-an Fishing Port while still getting you back to Magong in time for dinner.
If your main goal is to see Wai-an’s sunset and fishing lights, note that in winter (November to March) the sun sets earlier, so take the 2:50 PM or 4:40 PM outbound service and confirm the 6:00 PM or 7:20 PM return. In summer, sunset can be after 6:30 PM, so the 4:40 PM outbound paired with the 7:20 PM return works well. Under strong winter northeast monsoon conditions, wind on the Penghu Bay Bridge and exposure at bus shelters both worsen noticeably — check the wind forecast before setting out and bring a windproof jacket.