Arima Onsen has mainly two types of hot springs: ferruginous strong salt springs and ferruginous carbonated springs.

Iron-containing strong salt springs are brown, turbid waters that contain a lot of iron and salt.

Ferruginous carbonated springs are colorless and transparent, and contain a lot of iron and hydrogen carbonate.

The effects of Arima Onsen are said to be effective for a wide range of symptoms, including neuralgia, muscle pain, sensitivity to cold, high blood pressure, diabetes, and gynecological diseases.

There is a ropeway that climbs Mt. Rokko.

In the case of a car, there is basically no free parking lot, except for accommodation at each inn, so use a paid parking lot.