Koh Haa and Koh Rok are why you come to the Andaman Sea. This speedboat day trip strings together top snorkel grounds and a real beach reset, so you get both reef time and sandy recovery in one outing. The best part is the pacing, you are not rushed through one boring stop and sent home.

I love the combo of clear water reef snorkeling and the structured time in the water. You get several separate snorkel sessions, plus a long beach chunk on Koh Rok Yai where you can float, swim, and just breathe.

One thing to consider, the Andaman Sea can get choppy, so if you are sensitive to motion sickness, you need to plan for the ride.

Key things to know before you go

• Koh Haa first: a quick jump to some of the best reef visibility around Koh Lanta
• Multiple water sessions: you spend real time in the water at each stop, not one short splash
• Koh Rok Yai beach lunch: an all you can eat buffet served at the beach, then you get free swim time
• Nemo odds at Koh Rok Noi: clownfish sightings are a recurring theme at this final reef stop
• English guide on board: guides like Deedy, Ruth, and Ruud show up in past groups and keep things clear
• National park fee is extra: 400 THB for adults, 200 THB for kids 4 to 11

Koh Haa and Koh Rok, why this route feels worth your time

This is the kind of day trip that makes sense for snorkel fans. Instead of doing one island and calling it a day, you hit two island areas that are known for reef life and visibility, plus a beach that actually earns its vacation time.

Koh Haa is often described as five islands, and the big draw is the chance to swim between patches of reef with lots of different fish around. Koh Rok feels more dramatic on the surface too, with limestone cliffs and that clean, white-sand beach vibe on Koh Rok Yai.

If you are worried about crowds, the experience is usually organized in sessions. You will still see other boats, but the structure helps keep your water time from feeling like one giant free-for-all.

Getting there from Koh Lanta Yai: pickup timing and boat ride reality

You start with hotel pickup on Koh Lanta Yai. Pickup windows run between 7:50 AM and 8:50 AM depending on where you stay, and you meet the speedboat around 9:30 AM.

The boat ride is fast, about 30 minutes between major stops, but this is the Andaman Sea. You should expect some bouncing, and the tour itself even flags that it can get rough with big waves. If you have a sensitive stomach, take motion sickness prevention before you leave. It is one of the best “small investments” you can make for enjoying the day.

Also note the boat capacity details. The tour runs with a maximum of 45 people on one speedboat or up to 60 on a larger catamaran. Reviews often mention groups around 25 to 30, which usually means you can move, snorkel, and reset without feeling glued together.

Koh Haa (Five Islands): your first reef hit in turquoise water

Koh Haa is the warm-up act in the best way. After you cruise over, you get your first snorkel session for about 40 minutes.

This is where you look for the classic “Thailand snorkel” payoff: coral structure plus schools of colorful fish weaving in and out. The tour description focuses on swimming between the five islands and spotting the coral reef, and that matches what you can feel once you drop in. Visibility tends to be a big part of the magic here, the water color helps you find where fish hang out.

A practical tip from how the day is run: pay attention when the guide gives the go signal, and get in quickly once it’s time. One review noted that when you are allowed to move outside, you should do it right away to get better views over the water between stops.

Potential drawback: this area is popular, so you may share the first stop with another group. You can still have an excellent experience, but if you hate any crowding at all, temper expectations and focus on your water time.

Koh Rok Noi: the dramatic final reef stop and the Nemo connection

Next comes Koh Rok Noi, another short speedboat transfer, around 30 minutes from the previous area. You get about 40 minutes for swimming and snorkelling here.

This is the stop tied to the “wow” factor in the day. The scenery is more dramatic with limestone cliffs, and the reef is known for large coral formations. The tour also calls out clownfish, better known as Nemo, as a real target for this final snorkel session.

What matters for you is how the stop is designed. You are not meant to just float around and hope. The guide and crew help you spot marine life, and past groups even mention staff getting in the water to help point out rare fish and good places to observe.

One real-world consideration: like many multi-group snorkel days, it can get confusing when it’s time to return. A review mentioned that the horn and the timing signals could feel unclear. For you, that means treat return instructions like a checklist, listen for the horn, and watch the crew so you do not lose track of your session ending.

Koh Rok Yai beach time: lunch on sand, then free swimming

Then you get the beach you came for. Koh Rok Yai is where the day turns from “reef mission mode” into “stay awhile and recharge.”

You meet at the beach around noon and get an all you can eat lunch buffet served at the beach. Typical favorites in past lunch mentions include dishes like massaman curry. The buffet is meant to be generous, and reviews describe being able to take more than one plate without running dry.

After lunch, you have about 1.5 hours of free time to swim and relax. This is the best part of the schedule for people who do not want to snorkel nonstop. You can stay in the shallows, float, or simply sit in the shade and let the sun do its job slowly.

Then there is a second snorkel or swim window. The schedule includes another 40-minute session at Koh Rok Yai later. That second chance is more valuable than it sounds. If your first snorkel stop feels too crowded, too brief, or too busy, Koh Rok Yai gives you a reset, plus better odds of finding fish again.

Vegetarian note: the tour says the buffet is rather limited for vegetarian people, typically rice with vegetables and fruits. If you are vegetarian, plan your expectations and maybe eat a lighter breakfast so you are not hungry if the lineup is simple.

What you actually see underwater: corals, fish, and session length

Let’s talk about the stuff you care about when you put your face in the water: coral health and fish density.

The tour focuses on coral reefs across Koh Haa, Koh Rok Noi, and Koh Rok Yai. Reviews repeatedly describe coral conditions as good, with lots of species to see. You should expect plenty of colorful fish moving around the reef structure, plus moments where you feel like you are “inside” the fish activity rather than just watching from the surface.

Timing helps too. You are not snorkeling for one quick 15-minute burst. Each session is roughly 40 minutes, which gives you time to get settled, start spotting fish, and then really enjoy the last third of the swim instead of rushing through the experience.

One more detail that affects how fun it feels: past comments suggest that snorkeling is often done from the boat rather than from shore. If you prefer shore entries, ask your guide about the option at that stop. A life jacket may be available, and it can help you feel more relaxed if you are not a confident swimmer.

Also keep your expectations flexible. Marine life changes with conditions, and visibility can shift. Your best strategy is to treat each stop like a new chance, not as a repeat performance.

Lunch, drinks, masks, and the comfort checklist

This tour includes the basics that make snorkel days easier: snorkel mask, water, fresh fruit, and lunch at the beach. You also get a guide on board, plus a crew that is there to keep you safe and pointed in the right direction.

Comfort is a big deal on an all-day speedboat schedule. You will likely be in and out of the water and under sun between stops. I recommend you bring a sun hat, sunscreen, swimwear, and a towel so you are not improvising with limited supplies. Sunglasses help too, especially when you are watching the coastline slide by during transfers.

On gear: masks are included, but one review specifically said fins were not provided. If you know you snorkel better with your own fins, consider packing them. It is an easy “upgrade” that can make your water time smoother.

Food-wise, lunch is a highlight in many write-ups, with descriptions like tasty buffets and plenty to go around. If you have dietary restrictions beyond vegetarian, you will want to think ahead because the vegetarian option is described as limited.

Price and value: what $54 buys you, plus the park fee reality

The listed price is about $54 per person for an 8-hour day trip with transfers. On paper, that can feel like a lot until you break down what you are paying for.

You are covering multiple boat transfers, several snorkel sessions, an on-board English guide, and on-the-ground lunch service at the beach. You are also getting included equipment like the mask, plus water and fruit. For Koh Lanta, a day that delivers both snorkel prime locations and a real lunch setting can be good value, especially compared with arranging separate transport plus island hopping yourself.

The important catch is the national park entrance fee, which is not included. It is listed as 400 THB per adult and 200 THB per child aged 4 to 11. That fee can move your true total, so I’d treat your budget as “tour price plus park fee” from the start.

Who should book this, and who should skip it

This is a snorkel-focused tour, so it suits you best if you want reef time and you are comfortable spending a full day on the move. The schedule is built for people who enjoy multiple water sessions and want a beach break in the middle.

You may feel right at home if you:

• enjoy snorkelling and want to see corals and schools of fish across different stops
• want hotel transfers from Koh Lanta Yai and do not want to handle boats yourself
• like guided structure, with a crew that can help you find fish

You should skip it or rethink if you:

• are under 4, pregnant, or have mobility issues, wheelchair needs, or back problems
• get sick easily on boats, because the ride can be rough and bumpy
• have strong anxiety about a fast pace and a day with several group timing signals

If you are debating between speedboat options, the speedboat capacity (max 45) can mean a quicker, more direct ride to the remote sites. Some groups may run on a larger catamaran, which can feel smoother.

Should you book the Koh Haa and Koh Rok snorkel day tour?

I think you should book this if your main goal is snorkelling around Koh Lanta with maximum reef time and a proper beach lunch break. The route makes sense: Koh Haa for reef variety, Koh Rok Noi for the more dramatic final snorkeling push, and Koh Rok Yai for lunch plus recovery.

Book it with confidence if you care about organization and a crew that helps you spot marine life. In past experiences, guides like Deedy, Ruth, and Ruud (spelled in different ways) are mentioned for clear English and fun energy, and the crew has been praised for getting in the water to point out rare fish.

Only pause if you are very motion sickness prone, because the Andaman Sea can be rough. If you handle waves okay or you take prevention, you will likely love the mix of turquoise water, coral sightings, and that beach lunch you can actually relax into.

If you do book, pack smart. Bring sunscreen, a hat, and a motion sickness pill, and think of the park fee as part of the real cost. Then show up ready to snorkel and swim, and you will come away with the kind of day that makes you want one more reef stop before you leave Thailand.

FAQ

What islands do you visit on this tour?

You visit Koh Haa and Koh Rok, with snorkelling and swimming stops at Koh Haa, Koh Rok Noi, and Koh Rok Yai.

Is hotel pickup included?

Yes. Pickup and drop-off are included from hotels in Koh Lanta Yai. Pickup times are shared, and the driver waits no longer than 5 minutes after the scheduled time.

What is included with the snorkelling?

The tour includes snorkel mask, water, fresh fruit, and a lunch buffet at the beach.

Do I need to pay a national park entrance fee?

Yes. The national park entrance fee is not included. It is listed as 400 THB per adult and 200 THB per child aged 4 to 11.

How long are the snorkelling sessions?

Snorkelling sessions are about 40 minutes at Koh Haa, and about 40 minutes at Koh Rok Noi and Koh Rok Yai.

What is the lunch like, and is it vegetarian friendly?

Lunch is an all you can eat buffet served at the beach. Vegetarian options are described as rather limited, typically rice with vegetables and fruits.

What should I bring for a day on a speedboat?

Bring sunglasses, a sun hat, swimwear, a towel, sunscreen, cash, and motion sickness prevention.