Douliou is approximately 45 miles (72 kilometers) away from Taichung and about 50 miles (80 kilometers) from Kaohsiung.
At the very least, see the the Yunlin Indoor Arena while in Douliou.
While it can be tempting to simply sit back and relax when holidaying in Douliou, remember, the surrounding region's treasure-trove of scenic wonders are never more than a day trip away. If you're keen to explore more of the region, you'll find Shuili, 20 miles (32 kilometers) to the west, and Liujiao 20 miles (32 kilometers) to the northeast.
While you are staying in Douliou, don't forget to see Tainan. Approximately 45 miles (72 kilometers) away, this regional city is home to Koxinga Temple, Tainan City Hall and Tainan District Court. National Cheng Kung University, Tainan County Stadium and Lin Mo Niang Park are also good spots for checking out while you are in Tainan.
The area around Douliou has been graced with some beautiful shrines, sure to inspire all visitors, regardless of faith.
If you are looking for a completely different way to enjoy Taiwan, have a go at paragliding. Those with special interests are sure to enjoy the area's cycling tours and culinary tours.
Good things must come to an end, but be rest assured, when it's time to say "Zàijiàn" to Douliou, you'll have great photos and memories to remember your journey.