From Kos: Pserimos Island Snorkeling Cruise by Diving Boat

Clear water, small groups, and plenty of sea time. This half-day cruise from Kos takes you to a quiet blue lagoon near Pserimos, where you can swim, sunbathe, and snorkel at your own pace. I like the small-group feel, often around 15 to 25 people, and I like that the crew gives a proper equipment and safety briefing before you enter the water. The main point to consider is that this is not suitable for non-swimmers, and getting out of the sea means climbing a boat ladder.

The 25-meter Liamis Dive Boat has a shaded deck and a wide sun deck, so you can choose between shelter and full sun. I also appreciate that wetsuits and complete snorkeling gear are supplied, which makes longer time in the water more comfortable. Food, drinks, hotel transfers, and calm weather are not included, so a little planning matters.

Key points to know before you book

• A quieter boat experience: The group is often about 15 to 25 people, a useful contrast to crowded party boats.
• A full snorkeling setup is included: You receive a wetsuit, mask, snorkel, and fins, along with basic instruction.
• Pserimos gives you more than a quick swim: You have time for snorkeling, swimming, sunbathing, and marine-life watching.
• The boat leaves from central Kos harbor: Find it near the Dolphins roundabout, at the corner of Akti Kountourioti and Meg. Alexandrou.
• You need basic swimming ability: You must step on and off the boat, move through a narrow passage, and climb a ladder from the water.
• The price is reasonable for a half-day on the sea: At $64 per person, the included boat trip, crew, wetsuit, and gear make this a fair-value outing.

Setting out from Kos harbor around 8:30

The meeting point is easy to reach if you are already in Kos Town. Liamis Dive Boat is about 50 meters from the Dolphins roundabout, beside the only traffic lights, at the corner of Akti Kountourioti and Meg. Alexandrou. Bring your ticket and arrive around 8:15 to 8:30 in the morning.

Before boarding, you complete a short medical statement. This is a routine but important step because you will be in open water and using snorkeling equipment. You also need to provide personal details at least 12 hours before the trip, including your full name, address, phone number, and passport number, so the operator can place you on its passenger and insurance lists.

The boat is 25 meters long, which gives the outing a more substantial feel than a small open launch. You have a shaded deck for a break from the sun and a spacious upper deck for stretching out, drying off, or enjoying the coastal views during the crossing.

The published schedule places departure at about 8:30 and return at about 2:30. The activity is also described as lasting five hours, so I would confirm the exact timing when you book. Boat schedules can shift, particularly when wind affects the route.

A useful briefing during the 45-minute crossing

The trip to Pserimos takes about 45 minutes. This is not dead time. The instructors use roughly 20 to 30 minutes of the crossing to explain how to use the mask, snorkel, and fins and how to stay safe in the water.

That introduction matters if you are new to snorkeling. A mask that leaks or a snorkel used incorrectly can turn a pleasant swim into a frustrating one. The crew explains the basics before you reach the lagoon, giving you a chance to ask questions while you are still on the boat.

You also receive an introduction to local marine life. That makes the time underwater more interesting because you know what to watch for instead of simply kicking around and hoping to see a fish.

The crew speaks English and Greek. Several people who tried the activity as beginners found the instructions clear and reassuring, and that is one of the strongest reasons to choose this trip over a basic boat ride that simply hands you a mask.

Arriving at Pserimos and entering the blue lagoon

Pserimos is a small island in the Dodecanese, and the excursion takes you to a private blue lagoon with clear water. The setting is built around the sea rather than around a busy sightseeing program. You do not spend the day rushing between several stops.

Once the boat reaches the swimming area, you are fitted with a wetsuit, mask, snorkel, and fins. The wetsuit is a practical touch. It helps you stay comfortable during a longer swim and gives you some protection from the cooler water, even on a hot Greek morning.

The instructors remain nearby with indirect supervision rather than leading every second of your swim. That gives you freedom to choose your pace. You can stay close to the boat, swim farther out within the permitted area, or spend your time floating and looking below the surface.

This arrangement suits confident swimmers who want independence. It may feel less comfortable if you expect someone to hold your hand in the water or guide you along a fixed route. The activity is not intended for non-swimmers.

What you may see below the surface

The main reward is the chance to observe marine life in the wild rather than in an aquarium. The exact conditions and sightings naturally depend on the day, but people have seen plenty of fish and several different kinds of marine life around the lagoon.

The crew’s briefing helps you look more carefully. Instead of treating the water as just a place to cool off, you can watch for movement around the rocks and changes in the clear water. The experience is simple, but that simplicity is part of its appeal.

You do not need advanced snorkeling skills. The supplied fins help with movement, and the mask lets you keep your face in the water without constantly lifting your head. If you have never used a snorkel before, take the briefing seriously and practice calmly near the boat before swimming farther away.

I would also set your expectations sensibly. This is a marine-life viewing excursion, not a guarantee of rare creatures or dramatic underwater scenery. The strongest part of the experience is the combination of clear water, open time, and a helpful crew.

A relaxed half-day instead of a crowded party boat

One of the best features is the pace. The boat is designed for snorkeling and other underwater activities, not for loud entertainment or a packed sightseeing schedule. The group size can be around 15 to 25 people, which leaves more room to relax and makes the day feel calmer.

You can sunbathe on the upper deck, sit beneath the shade, or watch the coastline during the crossing. Once at Pserimos, you can divide your time as you like. Swim for a while, return to the boat, dry off, eat your lunch, and go back into the water if you still feel fresh.

That flexibility works well for families with older children, couples, and groups of friends with mixed interests. One person can snorkel while another prefers to sunbathe. The activity also allows a combination of snorkeling and scuba participants, so the boat may include people following different programs.

The mixed format is worth understanding before you book. If you want a dedicated snorkeling lesson with a guide beside you throughout the session, this may not be the right choice. If you want a comfortable boat, a well-explained introduction, and free time in a beautiful swimming area, it is a better fit.

Why the crew makes a difference

The crew receives repeated praise for being friendly, clear, and helpful. Athena is specifically mentioned as part of the team, and her calm support helped create a good experience for one group. The strongest pattern is not flashy entertainment. It is the feeling that beginners are taken seriously.

That matters on a boat trip where equipment can be unfamiliar. You want someone to explain how the mask fits, how to breathe through the snorkel, and how to use the fins without wasting energy. The team also gives advice on what to look for in the water.

The instructors do not appear to force a rigid schedule once you reach Pserimos. Their role is more about preparation and safety, then allowing you to enjoy the lagoon independently. I like that balance, though it means you need to take responsibility for your own comfort and limits.

The boat has received a 4.7 rating from 76 reviews, with particularly strong praise for the crew, the relaxed atmosphere, and the quality of the snorkeling. Several people returned for a second trip, which says something about the appeal of the quiet format.

What the $64 price includes

At $64 per person, this is not the cheapest way to spend a morning in Kos, but it offers more than a simple ferry ride or beach transfer. The price includes the boat, captain, snorkeling briefing, marine-life information, and complete snorkeling equipment.

The wetsuit is included as part of the equipment package. That saves you from renting separate gear and makes the price easier to judge. You are paying for transport to Pserimos, a crewed boat, instruction, and several hours in the water.

You must bring your own food and drinks. Pack a lunch, plenty of water, sunscreen, sunglasses, a hat, swimwear, and a towel. Bring cash as well, along with any personal medication you may need. There is no hotel pickup or drop-off, so you must make your own way to Kos harbor.

For me, the value is strongest if you care about the water itself and want a smaller group. If your main goal is a cheap boat ride with a short swim, you may find the price less appealing. If you would otherwise pay separately for equipment and a boat excursion, the package is sensible.

Physical requirements and comfort

You need to be able to board and leave the boat without assistance. The route includes a narrow passageway to the front deck, and leaving the sea requires climbing a ladder. That is the most important practical limitation.

The activity is marked as wheelchair accessible, but the boarding and sea-access requirements deserve careful attention. If you use a wheelchair or have limited mobility, contact Liamis Dive Boat before booking to confirm how the accessibility arrangements apply to your needs.

Non-swimmers should not book this outing. Even though instructors provide indirect supervision, the experience depends on your ability to swim and manage yourself in the water.

Wind can also cancel the trip. The boat operator may call off the excursion based on wind force and direction. That is a sensible safety measure, but it means you should avoid placing this trip on the only possible day of a short Kos visit if the rest of your plans depend on it.

Alcohol and drugs are not allowed. This is especially important because you will be using a boat ladder and snorkeling equipment in open water.

Who will enjoy this trip most

I would choose this cruise if you want a quiet sea outing with a friendly crew and enough time to enjoy the water without being pushed from one activity to the next. It suits confident swimmers, first-time snorkelers, families with children who can swim, and friends with different comfort levels.

It is also a good match if crowded party boats sound unpleasant. The smaller group and spacious boat create a more peaceful mood, with room to sit in shade or sun.

You may want another type of excursion if you dislike open-water swimming, cannot climb a ladder, or want a fully guided underwater route. You should also think twice if you need meals and drinks included or if you are looking for hotel transportation.

Booking, cancellation, and final practical advice

You can reserve now and pay later, which is useful if your Kos plans are still shifting. Cancellation is free up to 24 hours before departure for a full refund, according to the activity terms.

I would book early enough to provide the required personal information and then check the meeting point carefully. Bring your ticket, arrive before departure, and do not forget a packed lunch. Put sunscreen on before boarding and bring cash in case you need it during the day.

The best practical choice is to wear or pack comfortable swimwear and carry a towel that dries reasonably fast. Keep medication in a secure, accessible place rather than buried in a beach bag.

Should you book the Pserimos snorkeling cruise?

Book it if your ideal Kos excursion involves clear water, a calm boat, and unhurried snorkeling. The crew’s safety instruction, complete equipment, and smaller group make this a strong option for beginners who can swim and for experienced swimmers who prefer to explore independently.

Skip it if you are a non-swimmer, have difficulty with ladders, or want a fully escorted underwater tour. For everyone else, $64 is a fair price for a half-day trip to Pserimos, especially when you value good instruction and a less crowded boat.

FAQ

How long does the Pserimos snorkeling cruise last?

The activity is listed as lasting five hours. The stated schedule has departure at around 8:30 a.m. and return at around 2:30 p.m., so confirm the exact timing when you book.

Where does the boat leave from?

The boat departs from Kos harbor, about 50 meters from the Dolphins roundabout and at the corner of Akti Kountourioti and Meg. Alexandrou, near the only traffic lights.

What time should I arrive?

Plan to arrive at approximately 8:15 to 8:30 a.m. You must show your ticket and complete a brief medical statement before departure.

Is snorkeling equipment included?

Yes. The price includes a wetsuit, mask, snorkel, and fins, as well as a basic snorkeling and marine-life briefing.

Is food included?

No. Food and drinks are not included, so bring a packed lunch and water.

Is hotel pickup included?

No. You need to make your own way to the meeting point at Kos harbor.

Can beginners join the snorkeling trip?

Yes, beginners can join if they are swimmers. The instructors explain how to use the equipment and provide safety guidance before reaching Pserimos.

Is the activity suitable for non-swimmers?

No. Non-swimmers should not book this experience.

What should I bring?

Bring sunglasses, a sun hat, swimwear, a towel, sunscreen, a packed lunch, cash, and any personal medication.

Can the trip be cancelled because of weather?

Yes. The boat trip may be cancelled because of the force and direction of the wind.