Hike up Kaohsiung's Monkey Mountain via one of the many paths or the wooden staircase. Stop at Ya Zuo, about 45 minutes up, for views of the Straits of Taiwan. Many macaques live on the mountain. Don't bring any food with you — they've been known to swipe snacks from bags and pockets. Shy barking deer also live on Monkey Mountain, so keep your camera ready.
The eight-mile-long Love River is to Kaohsiung as the Thames is to London. Take a solar-powered boat tour past architecture like the Kaohsiung Bridge and the Holy Rosary Cathedral. Stroll along the water's edge, or rent a bike and cycle to the Pier-2 art district.