From Kos: Pserimos Island Snorkeling Cruise by Diving Boat

Clear water, calm seas, and a small boat make this trip appealing. From Kos, you cruise to a private blue lagoon near Pserimos for swimming and snorkeling, with instructors explaining safe technique and local sea life along the way. I especially like the small-group feel and the chance to spend several hours in one swimming area instead of rushing between crowded stops.

The spacious sun deck is another strong point, especially if you want a quiet boat ride between swims. The crew, including Athena, receives especially warm praise for being friendly and clear. The main consideration is that this is a mixed snorkeling and underwater activity, so you must be a confident swimmer and able to climb a ladder from the sea.

Key points at a glance

• A 25-meter boat with room to spread out: Liamis Dive Boat-Apollon has both a shaded deck and a broad sun deck.
• A blue lagoon near Pserimos: Most of the swimming and snorkeling time is spent in clear water off Pserimos Town.
• A useful beginner briefing: Instructors explain equipment, safety, and what marine life you may see before you enter the water.
• A quieter alternative to party boats: The group may be around 15 to 25 people, rather than a packed excursion boat.
• Bring your own food and drinks: Lunch, beverages, towels, sunscreen, and personal medication are not supplied.
• Good value for active swimmers: At $64 per person, the price includes the boat, captain, instruction, and full snorkeling equipment.

Setting out from Kos Harbour at 8:30

The meeting point is easy to find in central Kos Harbour. Look for the boat about 50 meters from the Dolphins roundabout, at the front of the only traffic lights, where Akti Kountourioti meets Meg. Alexandrou. You need to show your ticket when you arrive.

Plan to be there around 8:15 to 8:30 in the morning. Before departure, you complete a short medical statement. This is a simple but important step because the day involves entering and leaving the sea, swimming with fins, and climbing a boat ladder.

The boat is Liamis Dive Boat-Apollon, a 25-meter vessel with a covered deck and open sun deck. I like this layout because it gives you a choice. You can sit in the shade during the cruise, or stretch out in the sun when the boat is stationary. Bring a hat and sunglasses either way, since the glare off the water can be strong.

The published duration is five hours, while the stated schedule runs from about 8:30 until 2:30. In practical terms, allow most of the morning and early afternoon for the outing. The exact timing can shift with sea conditions.

The 45-minute ride to Pserimos

The cruise to Pserimos takes about 45 minutes. This is not dead time. During the crossing, the instructors give a safety and equipment talk lasting roughly 20 to 30 minutes.

You learn how to use the mask, snorkel, fins, and wetsuit. The staff also explain basic snorkeling technique and introduce the local marine life. For a first-timer, this guidance matters. A poorly fitted mask or awkward breathing through a snorkel can spoil an otherwise beautiful swim, and a few clear instructions can help you settle down quickly.

The safety talk is also a good moment to ask questions. The crew speaks English and Greek, and several people have praised the explanations as clear and reassuring. Athena and the rest of the crew have been singled out for a friendly manner, which is useful when you are trying something new in open water.

The ride itself gives you coastal views from the boat. It is a practical transfer rather than a sightseeing cruise with a long commentary, so you should book this for time in the water, not for a detailed history lesson about every island you pass.

Arriving at Pserimos Town and the blue lagoon

The boat heads to the waters near Pserimos Town, where you spend the main part of the day. The setting is described as a private blue lagoon with clear water, offering a sheltered-feeling place for swimming and snorkeling.

The important word here is time. You are not simply dropped into the sea for a quick look before the boat moves on. The schedule allows you to swim, sunbathe, and watch marine life at your own pace. Several people who returned to the experience appreciated having a few hours in the water, with less time spent traveling than on many larger island cruises.

The word private should be understood in a practical way. It refers to the chosen lagoon stop, not necessarily an exclusive beach or a completely empty stretch of sea. The boat may share the wider area with other craft, and conditions can change with the wind. Still, the smaller boat and limited group size can feel much calmer than a party boat or a large pirate-style cruise.

Once anchored, you are fitted with a wetsuit, mask, snorkel, and fins. The wetsuit helps you stay comfortable during a longer swim and provides some protection from the sun. It is also useful if the water feels cool after you have been floating for a while.

What you can see below the surface

The marine life is a major reason to choose this outing. The instructors explain what to watch for, and several people describe seeing many different fish in the clear water.

I would keep expectations sensible. This is a guided snorkeling stop in the Aegean, not a specialist wildlife expedition with guaranteed sightings of rare animals. The appeal is the simple pleasure of looking down into clean water and noticing fish moving around the rocks and seabed.

The briefing helps you get more from that moment. Instead of swimming past without noticing anything, you have an idea of what to look for. You can also ask the instructors about the species you see, though the available information does not promise a formal marine biology presentation.

The staff provide indirect supervision rather than one-to-one escorting. That means the instructors are present and available, but you remain responsible for your own swimming and position in the water. You should be comfortable managing yourself with fins and a mask.

Snorkeling for beginners, with a few limits

This trip works well for beginners who can swim. The crew explains how to breathe through the snorkel, how to use the fins, and how to handle the equipment before you enter the water. People new to snorkeling have found the instructions reassuring, and families have especially appreciated the clear explanation for children.

Still, this is not a lesson in a shallow pool. You must be able to swim and remain calm in open water. Non-swimmers are not suitable for the activity.

You also need enough mobility to step onto and off the boat, move through a narrow passageway to reach the front deck, and climb a ladder when leaving the sea. The trip is marked as wheelchair accessible, but that does not remove these physical requirements. If you use a wheelchair or have difficulty with ladders, ask the provider for a precise assessment before booking.

The crew uses a mixed format, with snorkeling and other underwater activity taking place from the same boat. You do not need to take part in anything beyond snorkeling, but the boat environment is designed around people entering the water and returning aboard. That can be a positive feature for an active group, though it may feel less tailored if everyone in your party wants only a passive sightseeing cruise.

A small-group atmosphere rather than a party boat

Group size is not fixed, but one repeat customer describes groups of roughly 15 to 25 people. That is a useful indication of the atmosphere. It is not a private charter, but it can feel far more manageable than a large excursion packed with people.

I like this middle ground. You get the safety and equipment of an organized boat trip without the noisy party-boat mood. The boat is large enough to provide shade and a sun deck, while the group can remain reasonably compact.

The smaller setting also helps when you need assistance with a mask, snorkel, or fins. A crew member can give you a few pointers without the confusion of a huge crowd. The trade-off is that the boat has a set schedule, and you cannot choose a completely private route or linger indefinitely at the lagoon.

Sunbathing, swimming, and the boat ride back

You can set your own pace at Pserimos. Swim with the fins and mask, float in the clear water, or remain on deck and enjoy the sun. If you prefer shade, use the covered deck between swims.

Pack a towel, swimwear, sunscreen, sunglasses, and a sun hat. Food and drinks are not included, so bring a packed lunch and water. Cash is also listed among the recommended items, along with any personal medication you may need during the day.

The boat returns to Kos Harbour around 2:30 in the afternoon. That timing leaves the rest of the day available for dinner, a walk through Kos Town, or a quiet afternoon at your accommodation. You should not count on the exact return time if the wind changes, since the trip can be cancelled when wind force or direction makes conditions unsuitable.

This weather policy is sensible for a boat activity, but it matters when planning onward transport. Avoid booking a tight connection or a nonrefundable afternoon appointment immediately after the trip.

Is $64 a fair price?

At $64 per person, I see solid value if you plan to use the equipment and spend real time in the water. The price covers the boat, captain, snorkeling gear, and the safety and marine-life briefing. You do not need to rent a mask, fins, or wetsuit separately.

The value is also tied to the group size and the amount of time at Pserimos. If you want a half-day on the sea with a proper boat, instruction, and a dedicated swimming stop, the cost is reasonable. The trip is less convincing if you mainly want coastal views from a deck, since you are paying for an active water experience.

Remember to budget for your own lunch and drinks. Hotel pickup and drop-off are not included, so you make your own way to Kos Harbour. Since the meeting point is central, that is less of a problem for anyone staying near Kos Town, but it is still a cost and planning point for accommodation farther away.

Free cancellation is available up to 24 hours before departure, and you can reserve while paying later. Those terms give you some flexibility, especially when the forecast is uncertain.

Who will enjoy this Pserimos trip most?

I would recommend it to:

• Confident swimmers who want clear instructions and organized equipment
• Couples and families looking for a calm half-day on the water
• Small groups who prefer a quieter boat to a party cruise
• Beginners who want to try snorkeling with support nearby
• Anyone who wants several hours for swimming, sunbathing, and fish watching

I would be more cautious if you dislike boats, cannot swim, or find ladders difficult. It is also not the best match if your main goal is a guided cultural tour of Pserimos. The emphasis is firmly on the sea.

Families should consider each child’s confidence in open water. The crew explains how to use the snorkel, which helps, but parents remain responsible for children during the swim. The available details do not promise flotation devices or dedicated child supervision, so ask the operator if those are important for your group.

Final call: should you book it?

Book this trip if you want a friendly, well-organized morning on the water and you are happy to bring your own food. The strongest reasons are the clear safety briefing, full equipment, spacious boat, and relaxed time at the Pserimos lagoon. Athena and the wider crew have earned especially warm praise for being helpful and easy to understand.

Skip it if you are a non-swimmer, need a fully escorted water activity, or want a large sightseeing cruise with onboard food and entertainment. For confident swimmers who want fish, sun, and a quieter boat, $64 is a sensible price for a half-day from Kos.

FAQ

Where does the Pserimos snorkeling cruise leave from?

The boat leaves from Kos Harbour, about 50 meters from the Dolphins roundabout, at the front of the only traffic lights on the corner of Akti Kountourioti and Meg. Alexandrou. You must show your ticket.

What time should I arrive?

Arrival is scheduled for approximately 8:15 to 8:30 in the morning. You will complete a brief medical statement before boarding.

How long is the trip?

The stated activity duration is five hours, while the schedule describes departure around 8:30 and return around 2:30. The crossing to Pserimos takes about 45 minutes.

Is snorkeling equipment provided?

Yes. The trip includes a wetsuit, mask, snorkel, and fins, along with a safety and equipment briefing.

Is food included?

No. Food and drinks are not included. Bring a packed lunch, water, cash, sunscreen, a towel, and any personal medication you need.

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 and climb a ladder from the sea.

Can the trip be cancelled because of weather?

Yes. The boat trip may be cancelled if the wind force or direction creates unsuitable conditions. Free cancellation is available up to 24 hours in advance for a full refund.