Green Island Zhaori Hot Springs

The sunrise view is a major draw, attracting 300,000 visitors annually. A 50-minute ferry from Taitung is required, making it the least accessible option on this list. Entry is just 200 NTD, but the remote location means higher total costs, with round-trip ferry fares averaging 1,200 NTD. No other Taiwanese hot spring matches its oceanic setting, though the journey limits spontaneity compared to Jiaoxi's easy train access.