If you'd like to add a little more culture to your escape, put Shusaku Endo Literary Museum on your list. Check if there are any guided tours or just wander around in your own time.
This museum in Nagasaki is popular with fellow travelers, so leave a spot for it on your travel itinerary. However, your day doesn't end there. There are a lot more attractions waiting for you to experience after Shusaku Endo Literary Museum. Nagasaki City Sotome Museum of Child, Shitsu Church, and Kurosaki Church are close by.