Less common variants are 小河 or 尾川. Notable people with the surname include:Ai Ogawa , American poet
Aya Ogawa, multiple people
Daiki Ogawa , Japanese footballer
Getting to Ogawa
To reach Uki by train from Hakata station in Fukuoka, take the Relay Tsubame or Ariake limited express to Kumamoto and transfer to the appropriately-named JR Misumi line. The ride costs ¥4400, and takes anywhere between 2 and 3 hours in total, since train services between Kumamoto and Misumi are sparse (only one train per hour). As of this writing, the first train leaves Kumamoto at 6:25, and the last at 23:09.
Worth seeing
Fireflies The fires on the sea. The fires appear in summer, and these are very beautiful. It is a mysterious thing, but many people want to see the fires every year. Wakamiya Beach Tobase Flower School Isuichi Dam Misumi Sea Pyramid Various mountains
Things to do
Wakamiya is a swimming beach, popular with the locals during the "swimming season." Otherwise it can be quite desolate even when the weather is perfect. Lessons can be had at the Tobase Flower School for a reasonable fee.
Where to eat
Shiranuhi has some famous fruits, for example, melon, grape, and many kinds of oranges. There are a couple of eateries before the 1st bridge of Amakusa (towards Oyano) as well as along Route 266.
Text adapted from Wikipedia and Wikivoyage, CC BY-SA 4.0. Photograph: DXR (see Commons), Wikimedia Commons.