Kos Town: Glass-Bottom Boat Cruise with Swimming Stops

The best part of this Kos boat trip is the combination of a close look at an old shipwreck and a long swim stop in remarkably clear water near Pserimos. You are not stuck on board all day, either. In about two and a half hours, you get sea views, fish spotting, music, and time to jump from the boat or use the slide.

I like the strong value at $23, especially for families, and I like the relaxed crew, who help children and less confident swimmers without making the trip feel over-organized. The main drawback is the glass-bottom viewing: the panels can be scratched or cloudy, so the wreck is far more impressive than ordinary fish spotting.

Key things to know before boarding

• The yellow Dorry boat leaves from Kos Town port, making this easy to fit into a morning or afternoon.
• The shipwreck is the strongest glass-bottom sight, with the clearest views coming as the boat passes directly over it.
• The swim stop near Pserimos is the real star, with clear water, fish, a sandy beach, and time for jumping or using the slide.
• You get sun and shade on board, but early arrival matters if you want a good outside seat.
• Drinks, snacks, beer, and low-cost cocktails are sold on board, but they are not included in the ticket.
• The trip suits families well, with floating aids, toilets, music, and crew members who pay attention to children.

A short cruise with a proper swim stop

The Dorry Glass Bottom Speedboat departs right from Kos Town port. Look for the bright yellow boat at the waterfront, then board for a 150-minute outing across the Aegean Sea.

This is a useful length for a holiday morning or afternoon. You get enough time to feel that you have left Kos behind, but you do not lose an entire day to a boat excursion. If you are travelling with young children, that matters. Two and a half hours is long enough for excitement and short enough to avoid the tired, sunburned feeling that can come with an all-day cruise.

The boat offers an upper deck for sunbathing and an undercover area for shade. The ride can be choppy, particularly on a breezier day, so I would arrive early and choose your seat with care. One family found that boarding twenty minutes before departure still meant the boat was already full, leaving them in the covered section. That area is useful when the sun gets strong, but a child feeling seasick may prefer the open upper deck, where there is more air and a better view.

The crew speaks English, Greek, Italian, and German. The atmosphere is friendly rather than pushy, and the staff generally let you enjoy the cruise without constant sales talk.

Seeing the Aegean from the glass-bottom decks

Once the Dorry gets moving, you can choose between sitting in the shade, finding a place in the sun, or heading to one of the two glass-bottom viewing areas. The basic idea is simple: look down into the water as the boat moves over the seabed and try to spot fish and other sea life.

The glass is not perfect. Scratches, cloudy sections, and plastic covers can limit the view, especially when the water is moving or the boat is crowded. I would not book this as a serious marine-life viewing trip. It is better understood as a pleasant extra that gives children something to do and adds interest to the ride.

The shipwreck changes that equation. As the boat passes above it, the structure below becomes much easier to see, and the wreck gives you a clear focal point. Several parts of the trip may offer only fleeting glimpses of fish, but the wreck is the moment when the glass-bottom design feels worthwhile.

The boat may pause around the wreck long enough for people to gather at the viewing sections. That can make things crowded, so you may need to wait your turn or position yourself carefully. If you are seated near the glass, people may stand around you when the sight comes into view. Still, the chance to look down at a wreck in clear water is a memorable part of the cruise.

The trip also includes views back toward Kos and across to Pserimos. On a bright day, the open sea, low island shapes, and salty breeze provide much of the pleasure. You are not signing up for a lecture-heavy sailing trip, although the guide may share information about the wreck and the local area.

The Pserimos swim stop is the main attraction

The boat’s swimming stop near Pserimos, often described as the Blue Lagoon, is where this excursion earns its price. The water is clear enough to see fish around the boat, and the setting includes a beautiful sandy beach. You can stay on board, swim from the boat, or make your way toward the beach if conditions allow.

The color and clarity of the water are the major draw. This is not just a quick splash beside the boat. The stop gives you time to swim, snorkel, float, and relax. Several people found the swimming time generous, while one comment wished for even more time there. Another expected two swimming stops and found only one, so book this knowing that the standard plan centers on a single main swim stop.

Bring your own snorkel if you have one. Goggles and pool noodles may be available on board, along with floating aids for people who are not strong swimmers. One practical criticism was that larger life vests would help some adults, so check the available equipment when you board if you need extra support.

You can also jump from the side of the boat or use the slide into the sea. That makes the stop especially appealing to children and teenagers. A child who does not want to swim can stay on board, watch the action, or try fishing with help from the crew. The staff have also been praised for responding calmly when children need extra care, including one particularly kind interaction with a child who had additional needs.

The water can feel cool, and the sun is strong. Take a towel, sun protection, and a change of clothes. If you plan to snorkel, pack your own mask and tube rather than relying on what may be available on the boat.

Music, snacks, and the useful details on board

The Dorry is not a silent sightseeing vessel. Music starts as the boat heads out, creating a light party feel on the upper deck. Some people will enjoy that energy, while those seeking a quiet nature cruise may find it a little lively.

A small bar sells soft drinks, beer, snacks, and cocktails. The food and drinks cost extra, but prices have been described as reasonable. Freshly made cocktails have been available for around €5, and the boat accepts cards. There is no strong pressure to buy, which is helpful if you prefer to bring your own water or simply enjoy the ride.

Toilets are available on board. That is a small feature, but it makes a big difference on a family outing and removes one common worry from a short sea trip.

You will want to balance comfort and views. The upper deck gives you the best breeze and open views, but little protection from the sun. The shaded area is more practical during the hottest part of the day, though it may fill quickly. If you want a particular seat, arrive well before departure rather than cutting it close.

The later sailing can also depend on the earlier boat returning. The 11 a.m. departure is the safer choice if you have a fixed plan afterward. A later trip may be fine, but allow some flexibility around boarding.

How the price compares with the experience

At $23 per person, this is one of the easier Kos excursions to justify. You are paying for a boat ride, the wreck viewing, the swim stop, and use of the onboard facilities. Drinks and snacks cost extra, but the base price still covers the parts most people come for.

The value is strongest if you want a short half-day activity rather than a full-day island cruise. A longer excursion may include several islands or more meals, but it also takes up much more of your holiday. The Dorry lets you get out on the water, swim in a beautiful place, and return to Kos with time left for dinner or an evening walk.

The price is less attractive if your main goal is professional underwater viewing. The glass-bottom panels have some scratches and cloudy areas, and fish sightings are not guaranteed. The wreck and the swimming stop carry most of the experience, so think of the glass-bottom feature as part of the package rather than the sole reason to book.

For families, the value improves. Children have music, a slide, jumping, fish spotting, and the option to stay in the shade. Adults get a scenic boat ride and a proper swim without committing to a long day at sea.

What to bring and how to make the most of it

I would pack lightly but deliberately:

• Swimsuit, towel, and dry clothes
• Sunscreen, hat, and sunglasses
• A snorkel and mask if you have them
• Water shoes if you prefer extra protection around the boat or beach
• A waterproof case for your phone
• Motion-sickness medication if you are sensitive to choppy water

Get to the port early, especially during the busy summer period. Early boarding gives you a better choice of seats and lets you settle before the boat fills.

If you want the clearest wreck view, stay alert when the crew announces that the boat is approaching it. Do not assume you can casually wander over at the last second. The viewing areas can become crowded, and people may gather quickly.

At the swimming stop, use the first few minutes to decide what suits you. Confident swimmers can jump or use the slide. Children and cautious swimmers can use the floating aids or enter at a slower pace. You do not need to get into the water to enjoy the trip, but the swim is the part that most fully rewards the ticket price.

Keep your expectations sensible about the glass bottom. On a calm, sunny day, it can be fun to spot fish and see the wreck. On a rougher day, reflections, movement, and scratched panels may make the view less clear. The cruise still works because the swimming stop and the open-water ride carry the outing.

Who should book this Kos boat trip?

I would recommend it to families, couples, and solo visitors who want a straightforward sea outing from Kos Town. It is especially good for anyone who wants to swim in clear water but does not want to spend a full day on a large island-hopping tour.

It also suits children who need variety. The boat provides several small activities rather than one long stretch of sitting: fish spotting, music, the wreck, swimming, jumping, the slide, and snacks. The crew’s calm help is another plus for families.

I would be more cautious if you dislike music, crowded viewing areas, or boat movement. The Dorry can feel busy, and boarding may be a little disorderly. If you need a quiet, private sailing trip or a polished marine tour with pristine viewing panels, this is not the right match.

Should you book the Dorry Glass-Bottom Boat?

Yes, if you want an affordable and easy half-day on the water. The Blue Lagoon swim stop is the main reason to go, while the wreck, music, helpful crew, and family-friendly setup make the trip more than a simple boat transfer.

Book it with two expectations in mind: there is one main swimming stop, and the glass-bottom panels may not be crystal clear everywhere. Arrive early for an outside seat, bring snorkel gear if you have it, and treat the wreck as a bonus rather than the whole point. At $23, this is a practical Kos excursion with enough action for children and enough clear-water beauty for adults.

FAQ

Where does the Kos glass-bottom boat cruise depart?

The yellow Dorry Glass Bottom Speedboat departs from the port in Kos Town. You should be able to spot it directly at the waterfront.

How long does the boat trip last?

The stated duration is 150 minutes, or two and a half hours. Some departures may run a little longer, so allow extra flexibility if you have plans immediately afterward.

What places do you see during the cruise?

The cruise provides views of Kos and Pserimos. It also passes an old shipwreck and stops near the Blue Lagoon area for swimming.

Is swimming included?

Yes. The boat makes a swimming stop in clear water near Pserimos. You can swim from the boat, jump in, use the slide, or remain on board.

Are food and drinks included?

No. Drinks, snacks, beer, and cocktails are available to purchase on board. The boat accepts card payments.

Is the experience suitable for children?

Yes. Children can watch for fish through the glass-bottom areas, enjoy the music, swim, use floating aids, jump from the boat, or use the slide. Toilets are also available on board.

Can I cancel the booking?

You can cancel up to 24 hours in advance for a full refund. The activity also offers a reserve-now, pay-later option.