I don't really like highways 1, 17 or 19 as they are all quite flat, straight and boring, with scenery that ranges from pretty poor to downright hideous.
By far, the BEST way to ride from KHH to Tainan is via backroads through the badlands.
I like to take the MRT north to the Sugar Refinery and start from there for this ride. This trims about 30 minutes of riding through industrial wastelands in North KHH.
From the MRT station you head north-east to Yanchiao and the Agongdian Reservoir.
|The dyke on the south end of the Agongdian Reservoir|
Hugging the hills on the west side of the reservoir, the road rolls north to highway 28.
|The start of the climb at the south-west corner of the reservior.|
|This pleasant road road sees very little traffic, so the lack of a bike/scooter lane isn't a problem.|
Turn right and head east along the 28 over 2 medium climbs to Moonland Park.
|At the bottom of a hill on highway 28 just before Moonland Park.|
At the bottom of the hill just past Moonland, turn left and head north on 39-1 along this quiet road all the way to highway 182.
Highway 182 heads straight west into downtown Tainan and isn't great, but ok. It does get busy when you pass highway 1 and the Hola store. Other choices from east Tainan are to head back to KHH on highway 19 or ride to the nearby high-speed train.