An Aegean Sea Adventure on Glass-Bottom Speedboat Dory!

See the sea without guessing. This fast glass-bottom Dory ride from Kos turns the water into the main event, with a real shipwreck sighting and time to swim at Pserimos.

What I like most is the two-deck setup. You can watch the underwater world from the shaded glass deck, or head to the top deck for sun and sea breeze.

One thing to consider: the ride can get a bit bumpy when winds pick up, and the snorkeling time is time-boxed, so it may not satisfy people who want a long underwater session.

Key highlights at a glance

• Glass-bottom shipwreck viewing from thick underwater windows
• Two decks to choose your vibe, shade for viewing, sun for relaxing
• Pserimos stop with swimming and snorkeling time in clear water
• Photo stop and scenic cruising with island views along the way
• On-board bar for drinks and snacks (cash helps)
• Quick 150-minute format that fits well into a day in the Dodecanese

Kos to Pserimos on Dory, What Makes It Feel Special

The Dory is built for speed and visibility, and you feel that from the start. You board in Port of Kos, then quickly shift from “we’re traveling” to “we’re sightseeing,” because the ocean itself is on display.

Two things steer the experience right away. First, the glass-bottom lets you watch the sea floor as you cruise. Second, you get a proper Pserimos break with time for swimming, snorkeling, and photos, not just a quick stop and go.

The trick is pacing. This is not a slow ferry day. You’re on a 150-minute loop that moves, so if you like to grab your best moments early, you’ll enjoy it more.

Stepping on the Boat, Two Decks, One Main Idea

The boat has two levels, and you should use them like tools.

On the lower level, you’ll find the shaded deck with the glass-bottom viewing area. This is the best place when you want to focus, cool down, and watch what’s passing under the boat. I like it because the view is steady and easier to study without glare.

On the top deck, it’s all about sun and open air. You get the Greek light on your face and wide sea views, and you can switch spots depending on how hot you feel. If you’re traveling with kids, this is also where you can keep an eye on everyone quickly.

One practical note: drinks can be purchased on board, so the lower deck can pair well with a cold beverage while you watch the water below.

The Pserimos Stop: Photos, Swimming, and a Short Snorkel Window

Once you reach Pserimos, you get an easy mix of island time and water time. There’s a photo stop and sightseeing elements along with the main swimming and snorkeling break.

The swimming area is a big part of why this tour works. Clear water and a relaxed pace make it feel like a break from sitting on land. In the season people describe, it can be refreshing even when the air is warm, and in October it can still feel cool but clean and inviting.

A detail I’d plan around: you should be ready to get back on board efficiently. One family shared that there’s an option to hop back in from the water, or use a slide instead of relying only on a ladder. If you’re traveling with kids or you don’t love ladder climbs, that slide option is a big plus.

You will have enough time to swim, but remember it’s still a single stop. If your goal is hours of snorkeling in one spot, this format may feel short. If your goal is “a swim plus a shipwreck view plus quick island time,” it fits nicely.

The Shipwreck Moment Through Thick Glass

The most memorable part is the underwater reveal: an old shipwreck you can look at through the boat’s thick glass bottom.

This is not just “see some sand.” The shipwreck is close enough to be worth paying attention to, and the glass helps you spot it without needing to gear up or jump in for every minute. It also works well for mixed groups, including people who want water time but don’t want to spend it fully in the sea.

When the signal comes, gather where the glass is best. If you linger for photos on deck, you might miss the exact window when the shipwreck is easiest to spot. I recommend choosing your viewing spot early, so you’re ready when they pull in close.

Even when visibility varies by season and water conditions, glass viewing tends to keep things readable. It’s a great way to make “the sea” the attraction, not just the scenery.

What the 150 Minutes Really Buy You

At about $29 per person for 150 minutes, you’re paying for three core values.

First, you’re paying for speed between Kos and Pserimos, not a long transfer day. The time format makes it easy to fit into a larger itinerary on the island.

Second, you’re paying for the glass-bottom experience itself. Watching the sea floor and shipwreck without relying on snorkeling or scuba is a distinct advantage, especially for people who want something different from a standard beach day.

Third, you’re paying for the combination stop: scenic cruising plus a swimming window plus underwater viewing. It’s the kind of tour that feels efficient, because you get multiple kinds of entertainment in one block of time.

If you’re already the type who loves short trips and photo stops, you’ll feel the value fast. If you want lots of land time, this may feel too quick, because it’s still built around water and movement.

Drinks, Snacks, and the Cash Detail People Forget

Drinks are not included, but you can buy them on board. There’s also a bar onboard with snacks and beverages, so you don’t have to come empty-handed if you want something cold during the ride.

The practical part: bring cash. That’s specifically called out for buying from the on-board bar. If you’re trying to travel light, it’s still worth keeping a small amount ready, because it’s an easy way to avoid delays.

If you’d rather not buy anything, you can still enjoy the experience fully. The main show is the glass viewing and the Pserimos water time.

Sea Conditions: When Wind Makes It More Interesting, or More Tough

One review described a turbulent stretch because of wind, and it added to the sense of adventure. You can expect the boat to be lively on a breezy day, since it’s a speedboat.

So here’s my balanced advice: if you’re sensitive to motion, plan for it. Keep expectations realistic, sit where you feel most stable, and bring what you use for seasickness if that’s part of your travel routine.

If you’re fine in general on boats, the choppy moments can feel like part of the fun, especially when you can still watch the underwater scene through the glass.

Who Should Book This Dory Trip on Purpose

This is a strong fit for people who want a water-focused day without committing to a long excursion.

Families with kids often do well because the experience is visual from the boat, and there’s time for swimming. One parent shared that it was a fantastic trip with a 4-year-old, mainly because the shipwreck was visible and the water options were easy to use.

Couples and friends like it because you get a mix of sun time, sea time, and an underwater highlight that’s not just “look at the beach.”

Snorkelers with moderate expectations should go in knowing the snorkeling window is limited. The water stop is real, but it’s not a full-day reef expedition. If you want a longer snorkel session, you might want to plan a separate swim plan on land later.

Also, it’s not suitable for people over 95 years, so check age requirements before you book.

Packing List That Actually Matters for This Tour

Bring the basics, because you’ll be out on the water and exposed to sun.

You’ll want sunglasses, a hat, sunscreen, and swimwear. Pack a towel so you’re comfortable when you finish the swimming break.

If you use a bag for beach gear, keep it simple. You’re on a moving boat, and you’ll likely be changing between deck areas and water time without wanting to manage complicated storage.

Should You Book the Dory Glass-Bottom Trip

I think it’s worth booking if you want a quick, scenic outing from Kos with one standout underwater attraction and an actual chance to swim at Pserimos.

Choose it if:

• You love sea views and want to see the ocean floor through glass
• You want a shipwreck moment without needing advanced water gear
• You like a short, structured tour that fits into a day

Skip it if:

• You want a long snorkeling session with lots of underwater exploration time
• You prefer calm, slow-paced sightseeing with minimal boat motion
• You want drinks included in the price (they cost extra on board)

If you’re flexible and sun ready, this Dory format makes a strong case for value, because it mixes speed, clear-water time, and a shipwreck you can actually spot.

FAQ

How long is the Dory glass-bottom trip?

The total duration is 150 minutes.

Where does the tour start?

It starts at the Port of Kos.

What islands are part of the experience?

You explore Kos and visit Pserimos during the trip.

Is there time to swim or snorkel?

Yes, there’s a swimming stop at Pserimos with time for swimming and snorkeling.

What can I see through the glass bottom?

You can observe the sea bottom and there’s a chance to see an old shipwreck through the thick glass.

Are drinks included in the price?

No. Drinks can be purchased on the boat with an additional charge.

Do I need cash for the on-board bar?

You should bring cash, since drinks, snacks, and beverages are available for purchase on the boat.

What should I bring?

Bring sunglasses, a hat, swimwear, a towel, and sunscreen.

What languages is the host available in?

The host or greeter speaks English, German, Italian, and French.

Can I cancel and who should not book?

You can cancel up to 24 hours in advance for a full refund, and the tour is not suitable for people over 95 years old.