July 25, 2025, 4:18 am | Read time: 3 minutes
If you’re snorkeling and want to see something other than the usual fish and plants, you should definitely visit the Greek island of Kos. There, you’ll find the so-called Bubble Beach, which hides something truly special underwater. TRAVELBOOK editor Katharina Regenthal saw it with her own eyes.
During a vacation on Kos, an island in the southeastern Aegean, we were eager to snorkel. However, we didn’t want to take a boat tour or anything like that. In my research, I came across the so-called Bubble Beach. It’s more of a “Bubble Area,” located at Paradise Beach on the southern coast of Kos.
The beach itself is beautiful, with fine sand and crystal-clear water. However, it’s not an untouched piece of nature but a very commercial beach. Which isn’t necessarily a bad thing. There are numerous loungers available for a small fee, and during the high season, inflatable water toys are set up. Even though that’s not really my thing and I prefer it quiet and relaxed, this detour was absolutely worth it!

Thousands of Tiny Bubbles
Upon arrival, I was initially a bit overwhelmed by the many loungers–where is the Bubble Beach supposed to be? A small, blue buoy in the water tells me: I’m in the right place, as it reads “Bubble Area.” So that’s where I’m headed, equipped with a diving mask and snorkel (though you don’t necessarily need it; a regular swim mask will do) and a smartphone with a waterproof case.
BILD Travel: Discover the best hotels on Kos now!
The sea becomes shallow at this point, which is especially advantageous for families with children. After a few meters, I take the plunge and put my head underwater. And at first, I must admit, I’m disappointed. I can only see a few air bubbles and think to myself: “Is this what the buoy is for?”

However, I was too quick to judge, because a few strokes later, I try my luck again–and I’m completely fascinated. Thousands of tiny air bubbles rise from the seabed. Thanks to the sun, the bubbles look like little glittering pearls.
There’s, of course, a reason why bubbles rise from the ground there. The cause is volcanic gases that reach the sea surface in the form of bubbles. In some places more, in others less. When the sun shines, it creates the impression that thousands of glittering bubbles are rising from the seabed.

These Islands Are Considered the Seychelles of Europe
7 things you should definitely do in the Maldives
My Conclusion on Bubble Beach on Kos
In my opinion, a visit is definitely worth it. Sure, if you’ve already seen the most beautiful reefs and colorful marine life while diving, you might not be as impressed, but I found it beautiful and very special. The only downside is that during the day, there are many visitors on the beach, and sometimes tourist boats come right up to the buoy. You can’t swim, dive, or snorkel peacefully then. We were there until about eleven in the morning–then the first boats arrived. But I’ve read that it calms down again from the afternoon until the evening.