First-time scuba can feel scary. This one stays calm with a sheltered 5m setup in Pserimos and a tight team of 2 instructors for 4–5 people, plus clear coaching for beginners. One key catch: it’s listed as not suitable if you can’t swim.

The boat heads out from the Port of Kos at about 08:30, then you’re back around 14:30 after one (or two) beginner underwater sessions plus snorkeling time. If you want an easy way to try scuba without committing to a full course, this half-day format is a smart fit.

Key Things I’d Focus on Before You Book

• Beginner-friendly depth: max depth is only 5 meters, reached gradually.
• Small groups, more attention: you split into groups of 4–5 with 2 instructors.
• Short, supervised time underwater: plan on about 20–25 minutes while instructors watch closely.
• Protected bay conditions: the site is inside a sheltered area between rocky outcrops.
• Flexible after your first session: snorkel/swim time, or pay for a second underwater session.
• Extra costs you should know: photos/videos cost extra on a USB, and a second underwater session is 45€.

A Half-Day Beginner Underwater Session in Kos: Why This Format Works

I like this kind of half-day scuba training because it gives you the full experience, but keeps the workload small. You get a proper safety and equipment routine, then only as much time underwater as you need to learn the basics without feeling rushed.

Kos is a place where you can easily fill your days with boats and beach time, so a morning-to-afternoon activity is a big advantage. You also get the “wow” factor fast: clear water, fish you can watch up close, and a site that stays gentle in depth.

From the Port of Kos at 8:30 to Pserimos by Mid-Morning

You meet at the Port of Kos (Kos 853 00) and the boat leaves at 8:30am. The ride takes you to Pserimos, where the day’s underwater and snorkeling time happens.

This timing matters. A morning departure usually means calmer water and better visibility, and it keeps the rest of your day open. By the time you head back, you’ll be done for the day around 14:30, with enough energy left to eat well and enjoy Kos instead of dragging yourself home.

The operator also uses a mobile ticket, which means you’re not chasing paper confirmations in a busy port. That small detail saves stress when you’re trying to stay on schedule.

On-Board Training: Gear, Safety, and Getting Comfortable Fast

Before anyone goes in the water, you get an in-depth briefing. It covers how the scuba setup works, how to use the equipment safely, and the key safety points you need to enjoy the experience.

This is one of the reasons beginners tend to feel at ease here: you’re not thrown in with minimal instruction. The coaching is broken down into steps, and your group stays guided throughout, instead of being left to figure things out on your own.

What the instructors are watching for

Once you start, instructors stay with you closely and supervise your time underwater. The experience runs in a controlled way, with a gentle depth profile and a protected site, so you can focus on technique rather than fighting conditions.

The Sheltered Bay Underwater Session: Gradual Depth to a Max of 5m

Your underwater session happens inside a protected bay on Pserimos. Rocky outcrops on either side help create a calmer, more beginner-friendly environment.

Depth increases very gradually as you move through the site. The maximum is only 5 meters, and that’s designed to be barely noticeable compared with what people picture when they hear scuba. In other words: you’re learning the gear and buoyancy basics in a setting that stays gentle.

How long you’re actually underwater

You’ll typically spend 20–25 minutes underwater while instructors keep a close eye on you. That timing is practical for beginners. It gives you enough time to see marine life and get comfortable, without overtaxing you on your first day in real open water.

What you’ll likely see

Expect abundant marine life in clear water, close enough for underwater photos. If you’ve ever watched snorkeling videos and thought, I want that view but I’m not ready for scuba, this is the route that usually makes people feel ready.

Snorkeling Time, Sundeck Breaks, and the Optional Second Session (45€)

After you finish your first underwater session, you’ll get a relaxing break. This is where the day shifts from training mode to enjoyment mode.

You then have options:

• Take part in a second underwater session for 45€ per person
• Or stay on the sundeck and snorkel or swim

I like this choice because it lets the day match your energy. Some people want to build confidence fast and do both sessions. Others do the first one well, then spend the afternoon enjoying the water in a less structured way.

If you’re the type who gets nervous at the idea of committing to more time, the “first one, then decide” approach is a big deal. You’re not locked into a whole day of pressure.

The Small-Group Setup: 2 Instructors Keeping Everyone in Range

The trip caps at a maximum of 10 people, which keeps the experience from turning into a factory line. From there, you’re arranged into groups of 4–5, and you’ll have 2 instructors working with you.

That ratio is the difference between feeling lost and feeling supported. Beginners can ask questions, instructors can notice small issues quickly, and you’re less likely to fall behind the group.

You’ll also spend the session staying within the confines of the bay. That keeps your route simple and helps instructors manage the group while still giving you real underwater viewing.

Price and Value: What $126.15 Gets You (and What It Doesn’t)

At $126.15 per person, this half-day scuba training can feel like a small splurge. But it’s built around value that matters for first-timers: instruction time, supervised underwater coaching, and gear.

Here’s what’s included:

• Scuba equipment (included)
• Snorkeling equipment (included)

What’s not included:

• Snacks
• Second underwater session (45€)
• Photos/videos on a USB (25€)

I think the value is strongest if you’re a true beginner or you want a structured way to see the underwater world without guessing. You’re paying for safety briefings, equipment help, and instructor time, not just a boat ride.

Also, the gentle conditions (protected bay, max 5m) mean your money goes toward learning rather than surviving. That’s how beginner experiences should work.

Photos and Videos: The $25 USB Decision After You’ve Seen the Fish

There’s a photos/videos element built into the day. Underwater photos are taken, and you’ll be able to buy them later as a USB stick for 25€.

If you’re the kind of person who likes proof that you did something hard, plan for this cost. If not, you can still enjoy the day without committing. Either way, it’s smart to make the decision after you’ve had the chance to see what they captured.

And yes, you’ll likely want photos. The whole point of this setup is getting close to marine life in clear water, at a depth that keeps the experience approachable.

Who Should Book This Kos Scuba Training Trip

This works best if you:

• Want a beginner-friendly way to try scuba in Kos
• Prefer small groups and close instructor support
• Are looking for a half-day activity that still feels like a real experience
• Can handle moderate physical effort at sea

It’s also family-friendly in the sense that the operator supports different comfort levels. One of the big strengths of this format is the option for snorkeling and swimming for people who don’t want the underwater session twice.

Who Should Think Twice

This activity is listed as not for non-swimmers. If you can’t swim, you should choose a different water-based experience in Kos where swimming isn’t required.

There are also height and age notes: it’s not younger than 12 years old, and there’s a minimum height requirement of 140 cm. If you’re flying soon, note that flying within 24 hours is flagged as an issue, so plan your schedule with a buffer.

If you have medical conditions, the safest move is to check with the operator before booking. The activity explicitly lists medical conditions as a consideration, so don’t assume you’ll be able to go if something in your health history might affect scuba safety.

Quick Practical Tips Before You Go

• Bring a swimsuit you feel comfortable moving in, plus something easy to change into after.
• Plan for no snacks included, so eat a solid breakfast before you meet the boat.
• If you want the second underwater session or photos, mentally budget for those add-ons now so it doesn’t feel like a surprise later.
• If you get motion sickness easily, take steps ahead of time since you’ll be on a boat ride in the morning.

Is This Beginner Boat Underwater Session in Kos Worth It?

If your goal is to learn scuba fundamentals with careful supervision in a shallow, protected setting, I’d put this high on your short list. The combo of small groups, two instructors, gentle depth to 5 meters, and clear coaching makes it one of the more beginner-appropriate ways to experience the sea around Kos.

Book it if you’re comfortable with swimming and you want a half-day adventure that doesn’t eat your whole day. Skip it if you can’t swim, if you’re scheduling a flight too soon after, or if you need medical clearance before you can do scuba safely.

FAQ

Where does the half-day experience start and end?

It starts at the Port of Kos (Kos 853 00, Greece) and ends back at the same meeting point.

What time does the boat leave?

The start time is 8:30am, with the boat returning around 14:30.

How long is the experience?

The duration is about 5 hours 30 minutes (approx.).

How many people are in the group?

The activity has a maximum of 10 travelers and divides you into groups of 4–5 for the underwater part.

What scuba depth will beginners experience?

The underwater activity stays in a protected bay with a maximum depth of 5 meters.

Is snorkeling included?

Yes. Snorkeling equipment is included, and you can also snorkel or swim during breaks and between options after your first underwater session.

Is a second underwater session included?

No. The option for a second underwater session is available for 45€ per person.

Do they include underwater photo or video?

They take photos/videos, and you can buy them later on a USB stick for 25€.

What age and height requirements apply?

It’s not younger than 12 years old and requires a minimum height of 140 cm.

Is it okay if I’m not a swimmer or I’m flying soon?

The activity is listed as not for non-swimmers, and it flags flying within 24 hours as an issue, so plan your schedule accordingly.

If you want, tell me your swimming comfort level and whether you’re thinking about the second underwater session, and I’ll help you decide if this is the right fit for your day in Kos.