


Beware of hydroids at Naminoue beach
Hey everyone,
I’ve been in Okinawa for a few days now and I’m really enjoying it overall but I had a small misadventure early on that’s made the rest of the trip a bit more complicated.
On my second day, I was swimming in the shallow, protected area of Naminoue Beach when my foot touched what I thought was just sea vegetation. I immediately felt a sharp, electric shock (very similar to a jellyfish sting).
After checking with the lifeguard, we ruled out a jellyfish. He mentioned it was a common reaction to what he described (through some bad google translation) as “insects” or “microbes,” which I believed to likely be hydroids or similar tiny marine organisms.
At first, the pain was manageable, but it got significantly worse about 6–7 hours later. That night was honestly BAD, the pain was intense enough to keep me awake despite being exhausted. By the next morning, it had calmed down quite a bit, and now (three days later) it’s more of a lingering discomfort than real pain.
That said, it’s still pretty inconvenient: I can’t wear socks or closed shoes, and even light contact (like bedsheets) can be irritating. Nothing dangerous, but definitely something that can impact your trip if it happens.
Just a heads-up to be careful, even in shallow, seemingly safe areas!
(Photos below: right after it happened, and how it looks now.)