From Kos: Pserimos Island Snorkeling Cruise by Diving Boat

Pserimos is the star here: a small island reached by a pleasant 45-minute boat ride from Kos, with clear water, a blue lagoon, and several hours for swimming and snorkeling. I like the small-group feel, often around 15 to 25 people, and the calm mix of sun, sea, and fish watching.

I also like that the crew takes safety seriously without turning the morning into a classroom. You get a proper equipment briefing, help with your mask and fins, and a wetsuit that lets you stay in the water longer. The main consideration is that this is not suitable for non-swimmers, and climbing back aboard means using a ladder.

Key points to know before booking

• Pserimos is about 45 minutes from Kos, leaving plenty of time for swimming rather than spending the whole trip at sea.
• The 25-meter Liamis boat has both shade and an open sun deck, so you can move out of the sun between swims.
• Athena and the crew are praised for clear, friendly instruction, especially helpful if you are new to snorkeling.
• The group is usually much smaller than a party boat, with roughly 15 to 25 people on some departures.
• Snorkeling and scuba activities share the boat, so the pace suits mixed groups, but it is not a dedicated snorkeling-only cruise.
• Food and drinks are not included, so bring a packed lunch, water, cash, and sun protection.

A quiet morning on the water from Kos

This is a half-day sea outing rather than a sightseeing cruise with a long list of stops. You meet the crew at the Liamis Dive Centre boat in Kos Harbour, near the Dolphins roundabout and the only traffic lights, at the corner of Akti Kountourioti and Meg. Alexandrou.

The boat is easy to identify as the 25-meter Liamis Dive Boat, also called Apollon. Plan to arrive around 8:15 to 8:30 in the morning. You will show your ticket, complete a short medical statement, and settle in before departure at about 8:30.

I like this early start. The sea outing gets underway before the hottest part of the day, and the schedule brings you back to Kos at roughly 2:30. That gives you a useful afternoon for a beach, a meal in town, or simply a slower evening after several hours in the sun.

The boat has a covered deck and a wide sun deck. That matters more than it may sound. You can sit in shade during the briefing, claim a sunny place when you want to dry off, and move around instead of being stuck in one narrow seating area.

There is no hotel pickup, so you need to make your own way to the harbor. The meeting point is central, but allow enough time to find the exact corner and complete the paperwork without rushing.

The 45-minute crossing to Pserimos

Once the boat leaves Kos, the crossing takes around 45 minutes. You get coastal views and time to settle into the rhythm of the day before the water work begins.

This is not a pirate-themed party cruise with loud entertainment as its main event. The mood is more practical and relaxed. The boat serves as a base for a mixed group of snorkelers and scuba participants, so you can expect equipment, instruction, and sea time rather than a packed sightseeing program.

During the crossing, instructors spend around 20 to 30 minutes explaining safe snorkeling and how to use the equipment. They cover the mask, snorkel, fins, and basic water procedures, then describe the local marine life you might see.

That briefing is one of the strongest parts of the experience. It is particularly useful for children and first-time snorkelers who may know how to swim but have never breathed through a snorkel. The crew explains the equipment before you reach the lagoon, so you are not trying to work out a leaking mask while already in the water.

Athena is one of the crew members specifically praised for helping people feel at ease. The instruction is in English and Greek. You should still pay close attention, because supervision in the water is indirect rather than one-to-one.

Arriving at Pserimos Town and the blue lagoon

The boat heads to Pserimos Town, a small island setting that feels very different from the developed waterfront of Kos. The main attraction is the clear water around a private blue lagoon, where the boat remains for the main part of the outing.

The wording private does not mean you should expect a completely deserted bay. Conditions and the number of boats can change. It does mean the trip is built around a quieter swimming stop rather than a quick photo pause at a crowded beach.

Once the boat is in position, the crew fits you with a wetsuit, mask, snorkel, and fins. You can then swim, sunbathe, and snorkel at your own pace. The wetsuit is useful even in warm weather because it helps you stay in the water longer and offers some protection from the sun.

The water is described as crystal clear, and the strongest part of the experience is marine-life viewing close to shore. You might see a variety of fish around the swimming area. The crew gives you an idea of what to look for, which adds purpose to the time in the water without turning it into a formal lesson.

The setup suits people who like flexibility. You can swim for a while, climb back aboard to rest, then return to the water. You are not required to follow a rigid group route. That freedom is a real advantage for families and friends with different energy levels.

What the water time is really like

The snorkeling is done under the indirect supervision of the instructors. That means trained staff are nearby and have explained safe use of the equipment, but you are not attached to a guide who leads every meter of your swim.

You need to be comfortable in open water and able to manage your own movement. Non-swimmers should not book this trip. Even confident swimmers should listen carefully to the briefing, especially regarding the mask, snorkel, fins, and getting back onto the boat.

The water time is shared with people taking part in scuba activities. That arrangement works well for a mixed family or friend group. A strong swimmer can snorkel while another member of the group takes part in the scuba side of the day, although the boat’s focus is not exclusively snorkeling.

The reviews give a useful picture of the atmosphere. People describe a friendly crew, clear explanations, plenty of fish, and a relaxed day. One returning customer specifically liked that the boat was not crammed with people, with roughly 15 to 25 participants on the trips they took.

That smaller scale is important. It means fewer people competing for space on the deck and less of the loud, crowded feeling found on some party boats. It does not guarantee the same group size on every departure, but it gives you a reasonable idea of the style.

Sun, shade, and the long middle of the trip

The boat remains at Pserimos for several hours, which is enough time to enjoy the water without feeling hurried. You can swim, snorkel, watch marine life, or simply sit on deck and look out at the coast.

The wide sun deck is a good place to dry off, but do not treat it as your only plan. Bring a sun hat, sunglasses, towel, swimwear, and plenty of sunscreen. A shaded deck is available, yet you will still spend much of the day exposed to bright Mediterranean sun.

Food and drinks are not included. Pack a lunch and bring cash for anything you may want during the day. Personal medication should also come with you. Alcohol and drugs are not allowed.

The absence of catering keeps the price lower, but it does require basic preparation. I would pack food that is easy to eat on a boat and bring enough water for a hot morning. You do not want your best snorkeling time interrupted by a search for provisions.

This is also a good outing for people who prefer an unhurried schedule. There are no long inland walks, no shopping stops, and no forced entertainment. The trade-off is that the day depends heavily on weather and water conditions. If the wind force or direction is unsuitable, the boat trip can be cancelled.

How much value do you get for $64?

At $64 per person, the price is fair for a five-hour boat outing that includes the captain, boat charges, equipment, wetsuit, and instruction. You are not paying only for transport to Pserimos. You are also getting a full set of snorkeling gear and staff who explain how to use it safely.

The value is strongest if you would otherwise need to rent equipment separately or book a short snorkeling session. The boat gives you a return crossing, several hours at the lagoon, access to shaded and sunny deck areas, and help from instructors.

It is less compelling if you want a polished all-inclusive cruise with meals, drinks, hotel transport, and a string of famous coastal stops. None of those extras are included. You are buying a focused sea activity, not a luxury day package.

The smaller, calmer feel also helps justify the fare. Many boat trips around Greek islands sell themselves on sheer capacity. This one is better suited to someone who would rather spend time in the water than squeeze onto a crowded deck.

Free cancellation up to 24 hours before departure and the reserve-now, pay-later option add useful flexibility. The operator needs your full name, home address, phone number, and passport number at least 12 hours before the trip for the passenger and insurance lists, so do not leave that step until the last minute.

Who will enjoy this outing most?

I would choose this trip for confident swimmers, first-time snorkelers who want clear instructions, and families with older children who can manage open water and the boat ladder. It also works well for a group with mixed interests, since snorkeling and scuba activities take place from the same boat.

The outing is a good match if you want:

• A half-day on the sea rather than a full-day cruise
• Several hours at one clear-water swimming area
• A smaller boat atmosphere instead of a packed party boat
• Basic instruction before entering the water
• Time to alternate between swimming, snorkeling, and sunbathing
• A chance to see fish in their natural setting

I would think twice if you cannot swim, dislike boats, or need a fully guided water activity. 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 activity is listed as wheelchair accessible, but the ladder and narrow passageway are important practical details. If you need assistance with water entry or have limited mobility, contact the provider before booking and ask exactly what help is available.

What to bring for a better day

The operator supplies the main snorkeling equipment, including the wetsuit, mask, snorkel, and fins. You still need to bring the personal items that make a long morning in the sun comfortable.

Pack:

• Swimwear and a towel
• Sunglasses and a sun hat
• High-protection sunscreen
• A packed lunch and water
• Cash
• Any personal medication
• Your ticket and required personal information

Wear or carry something easy to move in when boarding. The boat access includes a narrow passageway, and you will need to climb a ladder after swimming.

Do not bring alcohol or drugs. Also remember that the crew’s supervision is indirect. The briefing helps you use the equipment properly, but you remain responsible for swimming within your ability.

Should you book the Pserimos snorkeling cruise?

I would book this if your main goal is clear water, fish watching, and a relaxed few hours at sea, especially if you prefer a smaller group to a crowded party boat. The crew’s clear teaching, full equipment, wetsuits, and flexible water time give the $64 price solid value.

I would skip it if you are a non-swimmer, want hotel pickup, or expect food and drinks to be included. Check the wind forecast and be ready for a possible cancellation caused by sea conditions.

For a confident swimmer or a family with suitable children, this is a straightforward and well-focused Kos outing. You get Pserimos, a blue lagoon, useful instruction, and enough free time to enjoy the water at your own pace.

FAQ

How long does the Pserimos snorkeling cruise last?

The activity lasts about five hours. The boat usually leaves Kos at around 8:30 in the morning and returns at approximately 2:30 in the afternoon.

Where does the boat leave from?

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

What time should I arrive?

You should arrive at the boat at approximately 8:15 to 8:30 in the morning. Bring your ticket and be ready to complete a brief medical statement.

Is snorkeling equipment included?

Yes. The trip includes a wetsuit, mask, snorkel, fins, and the other standard snorkeling equipment needed for the activity.

Are food and drinks included?

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

Is this suitable for non-swimmers?

No. The activity is not suitable for non-swimmers. You also need to be able to step on and off the boat and climb a ladder to leave the water.

Is the boat trip available in bad weather?

The trip may be cancelled because of the force and direction of the wind. Sea conditions can affect whether the boat operates.

What languages do the instructors speak?

Instruction is available in English and Greek.

Can I cancel the booking?

You can cancel up to 24 hours before the activity for a full refund. A reserve-now, pay-later option is also available.