BEWARE! There is ONLY ONE ferry that leaves from Kada station to Tomogashima and that's at 10:30am on Saturdays, Sundays and public holidays only. The ferry returns to Kada station at 3:30pm. I found this out the hard way, as I arrived at Kada station at 10:50 only to learn the last ferry for the day (let alone week!) had just left. I was devastated because I had a planned a whole trip to Kansai just to see it. So I missed seeing the island, however I was very surprised with the kindness and level of service from the Kada station master and the little makeshift "tourist information" umbrella nearby. When he saw how disappointed he was he found a bunch of brouchures about local attractions then approached me with the leaflets. He said in Japanese "You wanted to see the ruins at Tomogashima, right? There is a place nearby, it is not Tomogashima, but it has ruins. Here is a picture, see? They look the same! Please go there, you will enjoy". I brushed away my tears and he walked me down a hill to the bus stop nearby and explained very carefully what bus to catch to get to the ruined houses. When I was waiting he even returned with a hand full of coins to refund my return train ticket. So I went to this place, it was in a national park nearby and there were several small houses that were abandoned. The ruins probably aren't as cool as those on Tomogashima but they still looked pretty and there were many hiking trails in the area. There was also a huge hotel in the park that had onsens, restaurants etc. Despite the mix-up with ferry times I ended up having a great day thanks to the staff at the Kada station who made a huge effort to ensure I had fun in their town. Thank you!