From Kos: Pserimos Island Snorkeling Cruise by Diving Boat

A quiet morning on the Aegean pays off. This five-hour trip from Kos takes you to a private blue lagoon near Pserimos, where you can swim, sunbathe, and look for fish in clear water. I like the small-group feel, often around 15 to 25 people, and I like the calm, helpful instruction before you enter the sea. The main drawback is that you need to be a confident swimmer and climb a ladder to get back aboard.

The boat, Liamis Dive Boat-Apollon, gives you both shade and a broad sun deck, so you are not stuck in one spot for the whole outing. Food and drinks are not included, and wind can cancel the trip, so pack lunch, watch the forecast, and keep your plans a little flexible.

Key points at a glance

• A 45-minute ride to Pserimos: The journey is long enough for coastal views, but short enough to leave several hours for swimming and snorkeling.
• A working boat, not a party ship: This is a mixed snorkeling and scuba outing, with a relaxed atmosphere rather than loud entertainment.
• A private blue lagoon stop: You can swim, sunbathe, and look for fish in clear water near Pserimos.
• Full equipment supplied: A wetsuit, mask, snorkel, and fins are provided, along with a safety briefing.
• Usually a modest group: Departures have been described as carrying about 15 to 25 tourists, a useful contrast to crowded excursion boats.
• A real physical requirement: You must step aboard, pass through a narrow passage, and climb a ladder from the water.

Why this Kos boat trip is worth your morning

Kos has no shortage of boat excursions. Some focus on music, drinks, and a full day of island stops. This one is more focused: get to the water, learn how to use your equipment, and spend a good part of the morning swimming and watching marine life.

I like that the trip does not waste much time on a long route. You leave Kos at about 8:30 a.m., reach Pserimos after roughly 45 minutes, and return around 2:30 p.m. That makes it a useful half-day choice. You still have part of the afternoon for Kos Town, a beach, or a quiet lunch.

The boat is 25 metres long, with a shaded deck and a spacious upper sun deck. That matters in the Greek sun. You can sit under cover during the ride, then move upstairs when you want a better view or more sun. The layout also gives you room to settle in rather than standing around a crowded railing.

This is not presented as a luxury yacht trip. It is a practical boat for getting people safely to the water. If you want a polished, private charter with waiter service, this will feel basic. If you want a sensible boat, proper equipment, and time in the sea, the format makes good sense.

Finding the boat at Kos Harbour

The meeting point is in Kos harbour, about 50 metres from the Dolphins roundabout, at the corner of Akti Kountourioti and Meg. Alexandrou, in front of the only traffic lights. The boat is connected with Liamis Dive Centre.

Plan to arrive between 8:15 and 8:30 a.m. You must show your ticket and complete a short medical statement before boarding. The operator also needs your full name, home address, phone number, and passport number at least 12 hours before the trip so you can be placed on the passenger and insurance lists.

There is no hotel pickup or drop-off. That is easy enough if you are staying in Kos Town, but you need to arrange your own way to the harbour if you are elsewhere on the island. Give yourself time to find the correct boat. Harbour areas can be confusing in the morning, especially when several excursions are preparing to leave.

The 45-minute ride to Pserimos

Once everyone is aboard, the boat heads toward Pserimos. The first part of the trip is not empty travel time. Instructors use the crossing for a 20 to 30-minute safety and equipment briefing.

You learn how to put on and use the mask, snorkel, and fins. You also receive basic guidance on safe snorkeling and an introduction to local marine life. That preparation is especially useful if you are new to snorkeling or have only used simple beach equipment.

I appreciate this approach because it sets clear expectations before you enter the water. You are not simply handed a mask and told to swim. The crew explains what to do, what to look for, and how to use the equipment properly.

Instruction is available in English and Greek. Several people who tried the trip as beginners felt well supported, and the crew has been praised for clear explanations and a friendly manner. Athena has also been singled out for warm, capable help on some departures.

Still, the supervision is described as indirect. You are not being led by the hand through the lagoon, and this is not a private lesson. Pay attention to the briefing, stay within your ability, and follow the crew’s instructions.

Arriving at Pserimos Town and the blue lagoon

The boat reaches the Pserimos area, near Pserimos Town, and anchors in clear water by a private blue lagoon. The main attraction is the water itself. You can swim, snorkel, or simply float and enjoy the setting from the boat.

The stop is designed to feel unhurried. You can choose your own pace rather than moving through a tight sequence of activities. One person might spend most of the time in the water, another might split the stop between swimming and sunbathing, and someone else might remain on deck and enjoy the coastal views.

The water is described as turquoise and crystal clear, with fish visible around the snorkeling area. Sightings naturally depend on conditions and luck, but the trip gives you a good chance to see a range of marine life. The crew explains what to look for before you enter, which helps you notice more than you would on a quick, unguided swim.

The island setting is part of the appeal. Pserimos is inhabited, but the experience centers on the quieter water around it rather than on a long visit ashore. Do not expect a full island tour or a detailed walking program. This is a sea stop with views of the coast.

What the snorkeling is really like

The equipment package includes a wetsuit, mask, snorkel, and fins. The wetsuit is a practical touch because it can help you stay comfortable during a longer period in the water. It also gives less confident swimmers a little extra support, though it does not replace swimming ability.

The crew’s basic lesson on snorkel use can be valuable for children and adults who struggle with breathing through a tube. A well-fitted mask and calm breathing make a big difference. Ask for help with the fit before you enter the sea. A leaking mask can turn a pleasant swim into a constant battle.

You are free to explore under the indirect supervision of the instructors. That freedom is a strength for confident swimmers, but it also means you should take responsibility for your own limits. The outing is not suitable for non-swimmers.

The water activities include more than casual floating. The boat is used for mixed snorkeling and scuba trips, so you may share the day with people following a different underwater program. That can be a good fit if your group includes people with mixed interests. Snorkelers are not expected to take part in scuba activity, but the boat’s purpose is more functional than purely sightseeing-oriented.

Life aboard Liamis Dive Boat-Apollon

The boat’s 25-metre length gives you several places to spend the day. The shaded deck is useful during the hottest part of the morning, while the sun deck gives you room to stretch out and dry off after swimming.

The atmosphere is one of the strongest parts of the trip. The outing has been described as tranquil, friendly, and comfortable, with none of the packed party-boat feel that can define some Kos excursions. Group size is not fixed in the supplied details, but one repeat participant described groups of about 15 to 25 people. That is small enough to feel manageable without promising a private charter.

I would bring a dry bag or another secure way to protect small items, although none is specifically supplied. Keep your phone, cash, and medication protected from spray and wet hands. You will also want sunglasses, a hat, sunscreen, swimwear, and a towel.

There is no food or drink included. Pack a lunch and bring water. Cash is also listed among the recommended items. Alcohol and drugs are not allowed, so this is not the right boat if you are looking for a floating bar scene.

How the timing affects your day

The schedule is straightforward:

• Arrive at the harbour around 8:15 to 8:30 a.m.
• Complete the medical statement and board.
• Spend about 45 minutes traveling toward Pserimos.
• Use 20 to 30 minutes of the crossing for the safety briefing.
• Spend the main part of the outing swimming, snorkeling, sunbathing, and viewing marine life.
• Return to Kos at about 2:30 p.m.

The published duration is five hours, while the stated departure and return times cover about six hours. Treat the schedule as an approximate morning-to-early-afternoon plan rather than a minute-by-minute promise. Wind force and direction can affect departure and may lead to cancellation.

That weather risk is worth taking seriously. Boat conditions in the Dodecanese can change, and the operator makes the final call for safety. Avoid booking this as the one activity that must happen on the final morning of your holiday.

Price and value at $64

At $64 per person, the trip offers reasonable value if you plan to use the equipment and spend real time in the water. The price covers the boat, captain, full snorkeling equipment, and the safety and marine-life briefing.

You are also paying for transport to Pserimos and several hours at a clear-water location. Compared with arranging equipment, finding a suitable swim site, and traveling there independently, the package is convenient.

The value drops if you do not swim, dislike being on a working boat, or plan to remain on deck without using the equipment. Food, drinks, hotel transfers, and personal expenses are extra, so include those when calculating your day’s cost.

I think the price is strongest for beginners and families with mixed confidence levels. The crew’s instruction helps, the group is not designed around partying, and the wetsuits allow you to spend longer in the water. Strong swimmers who want a challenging reef or advanced underwater session may find the outing too simple.

Who should book this Pserimos outing?

I would recommend it to:

• Confident swimmers who want a relaxed sea morning
• Beginners who want an equipment briefing before getting in
• Families with children who can swim and follow instructions
• Friends with mixed interest in snorkeling and scuba activity
• People who prefer a smaller, quieter boat to a party cruise
• Anyone who wants marine life without committing to a full-day island tour

I would not choose it for non-swimmers or anyone uncomfortable with open-water conditions. You must step on and off the boat, move through a narrow passageway to reach the front deck, and climb a ladder to leave the water.

The boat is listed as wheelchair accessible, but the water portion has clear physical demands. If you use a wheelchair or have limited mobility, contact the operator before booking and explain exactly what assistance you need. The listed ladder and narrow passage may make snorkeling difficult even if boarding the boat itself is possible.

A few practical ways to enjoy it more

Arrive early enough to complete the paperwork without rushing. Wear your swimwear under your clothes, since the morning moves directly toward the boat and water activities.

Bring lunch, water, sunscreen, a towel, sunglasses, a hat, cash, and any personal medication. Reapply sunscreen after swimming, especially on your shoulders, back, and legs.

Listen closely during the equipment briefing. The most useful part may be simple: getting the mask sealed, breathing calmly through the snorkel, and using the fins without tiring yourself out.

If you are traveling with children, explain beforehand that the crew supervises indirectly. Children must be comfortable in the water and able to follow safety instructions. This is a better match for children who already swim than for young beginners who need constant one-to-one help.

Check the weather and keep a spare plan for the day. Free cancellation is available up to 24 hours ahead for a full refund, and you can reserve now and pay later, but wind can still affect the actual departure.

Should you book it?

Book this trip if you want a friendly, low-key boat outing with proper snorkeling equipment, clear-water swimming near Pserimos, and enough time to enjoy the sea without a packed entertainment program. The small-group atmosphere, helpful crew, and beginner-friendly briefing are the best reasons to choose it.

Skip it if you are a non-swimmer, need close water supervision, or want meals and drinks included. For everyone else, $64 is fair for a half-day on the water, especially if you value a calmer boat and several hours at the lagoon rather than a long list of rushed stops.

FAQ

How long is the Pserimos snorkeling trip?

The activity lasts five hours, with departure from Kos at about 8:30 a.m. and return at around 2:30 p.m. The boat ride to Pserimos takes about 45 minutes.

Where do I meet the boat?

Meet at Kos harbour, about 50 metres from the Dolphins roundabout, at the front of the only traffic lights, on the corner of Akti Kountourioti and Meg. Alexandrou. The boat is connected with Liamis Dive Centre.

Is snorkeling equipment included?

Yes. The trip includes a wetsuit, mask, snorkel, and fins, along with a basic briefing on snorkeling safety and local marine life.

Is food included?

No. Food and drinks are not included. Bring a packed lunch and water, along with cash for personal needs.

Can non-swimmers join?

No. The activity is not suitable for non-swimmers. You must also be able to step on and off the boat, move through a narrow passageway, and climb a ladder to leave the water.

Can the trip be cancelled because of weather?

Yes. The boat trip may be cancelled because of wind force and direction. You can cancel up to 24 hours in advance for a full refund, and the activity also offers a reserve-now, pay-later option.