For a day by the water with a difference, check out the bubbling pools of Asama Hot Spring. This place is known for its mineral-rich waters.
If you've got time to stop for a while in Asama Onsen, Asama Hot Spring is a great place to start your sightseeing. This naturally heated water source is one of many attractions that'll keep you on the hop here. Matsumoto Castle, Matsumoto Performing Arts Center, and Alps Park Matsumoto are also waiting to be explored nearby.