Kos Town: Glass-Bottom Boat Cruise with Swimming Stops

Two and a half hours can be just right. The yellow Dorry speedboat gives you clear sea views, a shipwreck stop, and a beautiful swim in Pserimos waters without taking up your whole day. I like the friendly crew and the easy family appeal, especially the slide, floating aids, music, and short sailing time.

I also like the value at $23 per person. You get a boat trip, two glass-bottom viewing areas, time in the water, and views of Kos and Pserimos. The main drawback is that the glass-bottom viewing can be less impressive when the cover is scratched or cloudy, and the boat may feel crowded if you board late.

The experience earns a strong 4.4 out of 5 from 305 ratings. It is not a serious marine-life expedition, but it is a cheerful, low-cost way to get out on the Aegean Sea and enjoy a proper swim.

Key points at a glance

• The Blue Lagoon swim is the star: Expect crystal-clear water, fish, and time to swim, snorkel, jump, or use the boat’s slide.
• The shipwreck is best seen from the glass panels: The underwater viewing feels modest at first, but visibility improves over the wreck.
• Arrive early for an outdoor seat: The boat can fill before departure, and the shaded glass-bottom area may be your only option if you board late.
• Families get plenty to do: Children can look for fish, use floating aids, fish from the boat, or jump into the sea.
• The trip lasts 150 minutes: That makes it a good fit if you want a sea outing without committing to a full-day cruise.
• Drinks and snacks cost extra: The onboard bar has refreshments, and previous passengers found the prices reasonable.

From Kos Port to the Aegean Sea

You meet the boat directly at the port in Kos Town. Look for the yellow Dorry Glass Bottom Speedboat, which should be easy to spot among the harbor boats.

Boarding is simple, but do not treat the listed departure time as a reason to arrive at the last minute. One passenger boarded 20 minutes early and found the boat already full. If you care about sitting outside on the top deck, arrive early and claim your place.

That advice matters on a sunny day. The upper deck gives you the best breeze and open views, but it is also the first area to fill. The shaded section is useful when the sun gets strong, though it contains one of the glass viewing areas and may be busy around the shipwreck stop.

The boat has a bar, toilets, and seating in different areas. Drinks and snacks are not part of the $23 fare, but the onboard selection includes soft drinks, beer, and other refreshments. One passenger particularly liked the freshly made cocktails, priced at €5 at the time of that trip. You should still bring some payment flexibility, since the supplied details do not guarantee current prices or payment methods.

Once the boat leaves Kos, the trip quickly shifts from harbor sightseeing to open water. You get sun, salt air, and views back toward the island. Music is often part of the ride, giving the boat a relaxed party feel rather than a quiet nature-cruise mood.

The glass-bottom viewing areas and sea life

The boat has two glass-bottom viewing sections. These let you look straight down into the water while remaining dry, which is handy for children, non-swimmers, or anyone who wants to see the sea without getting in.

Keep your expectations sensible. This is not an aquarium with constant schools of fish passing below. The quality of the view depends on the water, the light, and the condition of the protective cover over the glass. Scratches and cloudy plastic can make the ordinary viewing less sharp.

The shipwreck changes that. Several passengers found the glass view only average until the boat reached the wreck. Once positioned above it, the underwater shape became much easier to see, and the stop felt more worthwhile.

The guides also give information about the wreck. The exact amount of commentary can vary, but the trip includes an informative element rather than simply parking over the site. One guide, Manolis, received special praise for keeping children attentive and for being especially kind to a child with autism. That suggests a crew that pays attention to people, not just the timetable.

Bring patience to the viewing area. People gather quickly around the glass panels, and standing room can become tight. One passenger found people stepping around and over the seating near the wreck. If you want a clear look, move over before the boat reaches the site, then take turns rather than waiting until everyone rushes down at once.

The old shipwreck stop

The shipwreck is the first major point of interest. The boat slows or positions itself so you can see the wreck through the underwater panels. The appeal is not only the wreck itself, but the shift in scale: from the surface, you see a calm blue sea; through the glass, you notice what lies beneath it.

The wreck is also a good moment for the guide’s commentary. You can expect some explanation about what you are seeing and why the site matters. If you enjoy a detailed archaeological talk, this outing may feel light. If you simply want a memorable underwater sight during a short cruise, it fits the bill.

Visibility can be excellent. Clear conditions have revealed the wreck and fish around it in striking detail. On other days, the glass may not look perfect, and one passenger found the wreck less interesting than the swim stop. I would treat the wreck as a pleasant feature, not the sole reason to book.

The boat’s music and group atmosphere continue around this part of the ride. That makes the outing fun for families and casual holiday groups, but less suited to someone seeking silence and serious wildlife observation.

Pserimos and the crystal-clear swimming cove

The swimming stop near Pserimos is where this cruise earns its keep. The boat heads toward clear green-blue water, often described as a Blue Lagoon, with a sandy beach nearby and fish visible in the shallows.

You get time to swim from the boat and enjoy the water at your own pace. The stop is not a token five-minute dip. Passengers repeatedly found there was enough time to snorkel, relax, jump from the side, and use the slide.

The water is the main attraction. You may see fish around the boat and along the beach, especially if you bring your own snorkel. Goggles and pool noodles have been available on some trips, along with floating aids for people who are less confident in the sea. Bring a snorkel if you have one, since the supplied details do not promise that full snorkel equipment will be provided.

The slide adds a playful touch for children and anyone still young enough to enjoy a boat slide without pretending it is only for the kids. You can also jump from the boat into the water, though you should follow the crew’s instructions and use the designated areas.

Non-swimmers are not left without options. Floating aids are available, and one child who did not want to swim was helped to fish instead. Still, you should ask about life-vest sizing before booking if a non-swimmer in your group needs a particular fit. One passenger specifically wanted larger life vests.

There is one point to watch: the standard description refers to a swimming stop, not two. Some people expect multiple swim breaks and are surprised by only one. The single stop is long enough to matter, but this is not a swim-hopping itinerary.

Why the 150-minute length works

At 150 minutes, the Dorry cruise fills a useful middle ground. You get a real boat outing, but you do not lose an entire day to it.

That timing works well for families with young children. Two and a half hours gives you a clear beginning, a shipwreck viewing, a swim, and the return ride. It is long enough to feel like an excursion and short enough that children are less likely to tire of the boat.

It also suits anyone with limited time in Kos Town. You can fit it into a morning or afternoon plan, depending on the departure time shown when you book. One practical warning: later departures can depend on the boat returning from the earlier sailing, so allow some flexibility if your schedule is tight.

The exact trip can occasionally run closer to three hours, according to one account. Most descriptions and comments place it at about two and a half hours, so plan for that length rather than counting on a precise minute-by-minute return.

The ride itself is part of the experience. You can sit in the sun, move to shade, buy a drink, listen to music, and watch the coast recede. That makes the time feel less like transport and more like a relaxed harbor escape.

Crew, atmosphere, and comfort onboard

The crew receives some of the strongest praise. People describe the staff as friendly, helpful, and welcoming without constant selling or pressure. That balance matters on a small boat, where an overbearing crew can easily spoil the mood.

The atmosphere is informal. Music may play soon after departure, and the ride can feel lively rather than formal. You can expect a mix of families, friends, and people who simply want a swim in clear water.

The boat has a shaded area, which is important in the Greek sun. The top deck is better for views and breeze, while the covered section is a sensible retreat when you have had enough sun. If you suffer from motion sickness, note that one trip was choppy and caused discomfort for a child. Sitting outside with fresh air may help, but the cruise is still a speedboat ride on open water, not a calm lake trip.

Boarding can be a little untidy when many people arrive at once. The boat may be full before the official departure time, and crowded areas around the glass panels can make viewing awkward. Arriving early is the simplest fix.

Is this good value at $23?

Yes, for most people. At $23, the fare is low for a 150-minute trip that includes a shipwreck viewing, a swim near Pserimos, boat entertainment, and crew assistance.

The value is strongest if you actually use the swimming stop. If you only sit on the boat and expect a major glass-bottom wildlife show, the outing may feel more ordinary. The underwater panels are an added feature, but the Blue Lagoon swim is the part most likely to stay with you.

Extra costs are limited to drinks and snacks. The available food and beverages have been described as reasonably priced, with no hard sell. You can keep spending modest by treating the bar as optional.

Compared with a full-day island cruise, this trip gives you less time and fewer stops, but it also costs much less and demands less of your day. If you want a short sea break from Kos Town, the price is hard to argue with.

Who should book the Dorry cruise?

I would recommend it most strongly to:

• Families who want an outing with swimming, music, and a slide
• Couples and friends looking for an inexpensive half-day activity
• Non-swimmers who still want glass-bottom views and the option to use floating aids
• Visitors with only a few hours to spare in Kos Town
• Anyone who enjoys a relaxed boat ride more than a formal guided tour

It is less suited to you if you want a quiet sailing trip, extensive historical commentary, or a long list of snorkeling locations. The music, shared seating, and busy viewing areas give it a social feel.

The outing can work well for children, but young passengers should have close supervision around the boat and swimming area. The crew has been praised for helping children and accommodating different needs, but parental attention remains essential.

Practical tips before you go

Arrive early, especially if you want a top-deck seat. The boat can fill well before the scheduled departure.

Bring a snorkel if you own one. The water around the swim stop is clear, and fish can be seen near the boat and beach.

Pack sun protection and a cover-up. You can move into shade, but much of the appeal is being outside on the Aegean.

Keep some money available for drinks and snacks. The bar is optional, but a cold drink after swimming is a pleasant part of the outing.

If you are prone to seasickness, choose an outdoor seat and keep an eye on the sea conditions. One trip became choppy, so calm water should not be assumed.

Do not promise children two swimming stops. The usual plan includes one main swim break, though it provides a generous amount of water time.

The crew speaks English, Greek, Italian, and German. Cancellation is free up to 24 hours before departure, and you can reserve now and pay later, which helps if your Kos plans are still shifting.

Should you book this Kos Town boat trip?

Book it if you want a friendly, affordable sea outing with one excellent swim stop. The shipwreck and glass-bottom panels add interest, but the clear Pserimos water is the real reason to go.

Arrive early, bring a snorkel, and choose the trip with the swimming stop in mind. If you need a quiet, polished glass-bottom cruise with perfect underwater viewing, look elsewhere. If you want two and a half hours of sun, music, fish, jumping, and bright Greek water for $23, this is a very good buy.

FAQ

Where does the glass-bottom boat cruise meet?

You meet the tour at the port in Kos Town. Look for the yellow Dorry Glass Bottom Speedboat.

How long does the cruise last?

The stated duration is 150 minutes, or two and a half hours. One account described a trip closer to three hours, so allow a little flexibility around the return time.

How much does the cruise cost?

The listed price is $23 per person.

Is swimming included?

Yes. The boat makes a swimming stop in the clear waters near Pserimos island.

Are there two swimming stops?

The supplied tour details describe one swimming stop. Do not book this outing expecting two separate swim breaks.

Are drinks and snacks included?

No. Drinks and snacks are available onboard but cost extra.

What languages are spoken?

The host or greeter can speak English, Greek, Italian, and German.

Can I cancel the booking for a refund?

You can cancel up to 24 hours in advance for a full refund. The booking option also allows you to reserve now and pay later.