The scenery is nice, but it's quite secluded. The weather can be quite hot in July, August, and September. The stairs might be a bit difficult to climb with children, and the guardrail on the top floor is very low, so be careful. The entrance fee is not expensive, but the interior isn't very large, so you can explore it. It's not comparable to Himeji Castle. It's a short walk from Inuyama-Yuen Station. If you take the train to Inuyama Station, it's a bit farther, but you can visit the castle town and do some shopping. I took a taxi directly to Unuma Station and then took the train to Gifu.