Welcome to Tony Alexander's onsen portfolio of Japanese hot spring spas. This brief photo exhibition highlights a few of my favorite hot spring spas across Japan. I have been to all of them. Each photo has a particular theme. Some scenes evoke winter, dusk, nightfall, and so on. I am a certified onsen sommelier by the Japan Onsen Sommelier Association. Japan has over 3000 registered natural hot spas, but that does not include many of the hidden gems that are privately owned. I shot these pictures with a Canon 40D.