Question: what to do at arima onsen?
Answer: Take a short cross over Nene-Bashi. ... 
Dive into the Arima Toy and Automata Museum. ... 
Tour and shop around Yumotozaka Shopping Street. ... 
Slurp up the yummy gonsoba ごんそば ... 
Checking out Arima Onsen-ji. ... 
6. “ ... 
Take a hot dip in Kin no Yu. ... 
Take a foot bath (ashiyu)