You can take time to visit Furuyu Onsen during your travels to Saga. Wander the marina and gardens while you're in the area.
You can learn about the history of Akamatsumachi with a trip to Saga Castle. Wander the marina and gardens while you're in the area.
Saga Prefectural Government Office is just one of the places to see in Akamatsumachi, so why not enjoy the other things to explore during your travels? Take in the museums while you're in the area.