Reviewed · KOH TAO TOURS
Ko Tao: Tao-Nangyuan Snorkeling Day Trip with Meals & Sunset
Koh Tao’s best snorkeling is spread around the island, and this small-group boat trip gives you a practical way to reach it all in one long, food-filled day. You visit Koh Nang Yuan, Japanese Gardens, Mango Bay, Hin Wong, Aow Leuk, and Shark Bay, with time in the water at each.
I like the personal attention in the water, especially when guides such as Zin, Lucky, and Mr Tu help nervous swimmers spot turtles and blacktip reef sharks. I also like the freshly prepared lunch, unlimited soft drinks, and sunset BBQ, which turn a busy sightseeing day into something pleasantly easy.
The main catch is the sea. Wind and chop can force the crew to change the route, and the Koh Nang Yuan entrance fee is extra. The viewpoint also gets hot and crowded, so you will want to move quickly if that view matters to you.
Key points at a glance

- Small boat, usually up to 20 people: Some departures have had as few as four to nine people, while others run close to the 20-person limit.
- Five useful water stops: You get several chances to snorkel instead of betting the whole day on one reef.
- Turtles and blacktip reef sharks: Sightings are common in the areas visited, but marine life is wild and never guaranteed.
- New snorkeling mouthpiece: You receive your own new mouthpiece, while mask, snorkel, fins, and a life jacket are supplied.
- Two proper meals onboard: Thai buffet lunch comes first, followed later by BBQ skewers and a non-alcoholic mojito.
- Free underwater photos: Guides use an underwater camera or GoPro and share photos and videos afterward.
Why the small Royal Mariblue boat matters

At $62 per person, this is not Koh Tao’s cheapest boat outing. The price makes more sense once you consider what is included: hotel pickup and return, a local guide, snorkeling equipment, two meals, drinks throughout the day, kayaks, paddleboards, and underwater photography.
The biggest value is space. A boat capped at about 20 people feels far easier than a large day boat carrying 30 or more. You can usually get into the water without a long queue, hear the guide’s instructions, and return onboard without hunting for a seat.
Group size changes from one departure to the next. Some trips have operated with only four, six, eight, or nine people. Others have carried 18 to 20. Even at the upper end, the boat has a top and lower deck, so you are not packed shoulder to shoulder.
You also get more help in the water. Guides have stayed with the group, pointed out turtles and small sharks, and helped less confident swimmers enter from the back of the boat. That is a real benefit if you are new to snorkeling or do not enjoy being left to find your way alone.
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Starting in Ko Tao and reaching Nang Yuan

Pickup is from your hotel in Ko Tao, with the exact time confirmed after booking. You should wait in the lobby or agreed meeting place five minutes early. One useful caution: shared transfers can take longer if the vehicle collects people across the island.
At Royal Mariblue, the crew gives a safety briefing of about 15 minutes. This is the right time to ask how to use the life jacket, where to leave valuables, and how the crew will signal when it is time to return to the boat.
The first cruise takes you toward Koh Nang Yuan, a group of three small islets joined by a narrow strip of beach. The setting is famously photogenic, but it is also one of the busiest parts of the day.
You have about an hour and a half around Nang Yuan for sightseeing, swimming, and views. If you want the famous viewpoint, go early. The climb is short but includes stairs and uneven rocks, and the heat builds quickly. If you do not want the climb, the area near the water station gives you a lower but still worthwhile look across the beach and islets.
Bring cash for the island entry fee. The supplied trip information says this fee is not included, and recent practical information puts it at 250 baht. Plastic bottles are not allowed onto Koh Nang Yuan, so use the refillable option provided by the boat or bring a reusable bottle.
Japanese Gardens: the calm first swim

Japanese Gardens is a sheltered site on the east side of Koh Nang Yuan. Granite rocks, coral, and smaller reef creatures make this a good introduction to the day, especially when the water is calm.
The scheduled snorkeling time here is about 30 minutes, though the wider Nang Yuan stop includes additional time for swimming and the beach. The shallow water helps you see the bottom without needing strong swimming skills.
This is also where the new mouthpiece matters. You are not sharing the part of the snorkel that goes in your mouth, while the rest of the mask, snorkel, and fins are supplied. You can use a life jacket if you prefer. Guides have also helped people step into the water from the rear platform rather than jumping from the side.
Afterward, take a break on the sun deck while the crew serves coffee, tea, and lunch. The buffet includes six food choices and two seasonal fruits. The dishes are Thai, with rice, noodles, curries, and items such as chicken wings appearing on some departures. Portions are generous, which is useful because the afternoon includes several more swims.
Mango Bay and Ao Muong’s rocky coast

Mango Bay, on Koh Tao’s northern side, brings taller green hills and large granite boulders around the water. It feels more enclosed than Nang Yuan and gives you another setting rather than a repeat of the first stop.
You have about 50 minutes for swimming, snorkeling, and viewing fish. The guide may lead you toward the areas with the most activity, but visibility changes with weather, tides, and boat traffic.
The bay is sometimes described with Ao Muong Beach, a small picture-postcard resort area. From the boat, you get the main reward: a view of the shore and access to water that is awkward to reach overland. This stop is less about ticking off a beach and more about enjoying a quieter stretch between the busier island sites.
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Hin Wong and the chance of sardines

The next stop is Hin Wong Bay on Koh Tao’s east coast. You can snorkel, swim, or use a kayak. A sandy beach gives you the option of staying onshore for a while, while the water offers another chance to see reef fish.
The unusual sight here is a school of sardines being chased by trevally. It can happen in water only about one meter deep, so you do not need to be a strong swimmer to appreciate the action. Of course, fish behavior is unpredictable, and the trip cannot promise this scene.
The 50-minute stop is long enough to settle into the water instead of rushing through a few minutes of looking. Kayaks and paddleboards are included, but snorkeling is the main reason to choose this outing. The extra equipment is best treated as a pleasant option for a break.
Aow Leuk’s sandy bottom and easy entry

Aow Leuk is one of the more comfortable stops for a relaxed swim. The bay has a sandy bottom in the middle, so you can float without constantly worrying about scraping against rocks.
Fish of different sizes gather here, and small harmless sharks are sometimes seen close to shore. The beach itself gives you a change of pace after several boat-based swims. If you are not keen to swim far from the boat, this is a useful place to keep things simple.
I would still wear the life jacket if you are tired. The day is long, and five water stops can catch up with you even when each one feels easy. The guide’s job is not only to find sea life, but also to keep the group together and make sure less confident swimmers are included.
Shark Bay and the day’s biggest wildlife moment

Shark Bay is usually the headline stop. In water about four to ten feet deep, you may see blacktip reef sharks moving above the seabed. Some can be more than six feet long, though the small sharks and pups are often just as exciting to spot.
Sea turtles are also seen in this bay. Guides have sometimes spent extra time helping the group find them and positioning swimmers for underwater photos. That personal approach is one of the clearest differences between a small boat and a very large one.
Keep your expectations sensible. The crew can know where sharks and turtles often pass, but no wild animal performs on schedule. Cloudy water, wind, or a change in conditions can affect what you see. The good news is that the route gives you several other sites, so the whole day does not depend on Shark Bay.
The scheduled stop lasts about an hour. That is the longest water session, and it makes sense because the bay may require some patient searching. If you are a beginner, tell the guide early. The crew has a strong record of helping people who planned only to watch from the boat become comfortable enough to snorkel.
Food, drinks, and the sunset return

Fresh fruit appears during the day, along with tea, coffee, bottled water, Coke, Sprite, and other soft drinks. That steady supply is more important than it sounds. Sun, salt water, and wind can leave you dehydrated long before you feel hungry.
The final stop is Banana Rock, where the crew serves a BBQ set and a virgin mojito while the sun goes down. The usual food is chicken skewers, and the meal is lighter than lunch but well suited to the ride back.
The sunset is not guaranteed to be clear. Weather has forced the boat to skip or alter the final scenic stop on some days, but the crew has still served the BBQ when the view was limited. If the sky cooperates, the upper deck is the place to sit. It is a gentle finish after a full circuit of Koh Tao.
Underwater photos without another fee

The included photography service is a major plus. Guides use an underwater camera or GoPro to take photos and short videos while they point out turtles, sharks, coral, and fish.
The files are generally shared afterward through WhatsApp or Google Drive. You should confirm how the crew will send them before leaving the boat, and make sure your phone number is correct. These pictures are especially useful if you do not have a waterproof camera.
Do not expect a private photo shoot for every person on a full 20-person boat. The smaller the group, the more time the guide can spend getting individual shots. On departures with four to nine people, the photography feels close to a private service. At capacity, the guide has more people to cover.
Who will enjoy this trip most
I would choose this trip if you want to see several Koh Tao bays without arranging separate taxis, beach visits, and equipment rentals. It suits solo visitors, couples, families with older children, and first-time snorkelers who value help in the water.
It is also a good fit if food and drinks matter to you. Lunch is not just a packet of snacks, and the sunset BBQ means you do not need to plan a meal immediately after returning to Mae Haad pier.
You should think twice if you dislike long boat days, sun exposure, or changing plans. The experience lasts about 510 minutes, or eight and a half hours. Pregnant people, wheelchair users, and people with heart problems or other pre-existing medical conditions are not considered suitable for this activity.
Pack swimwear, a towel, sunglasses, a camera, biodegradable sunscreen, and personal medication. Do not bring large bags, pets, weapons, or sharp objects, and do not touch marine life. Apply sunscreen often, since the open upper deck offers little escape from the sun.
Weather is part of the deal
The Gulf of Thailand can change the character of the day. Wind and choppy water have caused the crew to adjust the itinerary, skip exposed locations, or change the order of stops.
That flexibility is a strength, not a flaw. A responsible crew should not force a route simply because it is printed in a schedule. On rough days, you may spend less time at one bay and more time somewhere sheltered. The important thing is to judge the trip by the care and alternatives offered, not by whether every stop happens exactly as planned.
Visibility can also vary. Even when the sea is cloudy, you may still see fish, turtles, or small sharks, but coral colors will not look as sharp. If perfect underwater conditions are your top priority, leave some room in your itinerary in case you want to try again.
Is $62 good value?
For $62, you are paying more than the basic crowded boat tours around Koh Tao. I think the difference is justified for many people because transport, gear, a new mouthpiece, meals, drinks, kayaks, paddleboards, a guide, and underwater photos are bundled together.
The real question is how much you value room and assistance. If you are happy to share a large boat, bring your own camera, and arrange food separately, a cheaper trip may suit you. If you want a calmer boat, several snorkeling locations, and someone actively helping you find wildlife, the extra cost is reasonable.
The Koh Nang Yuan entrance fee is still separate, and alcoholic drinks are not included. The supplied drink is a non-alcoholic mojito, with soft drinks and hot drinks available onboard.
Should you book the Royal Mariblue day trip?
Book it if you want a full day on the water with small-group attention, several snorkeling chances, and meals already handled. It is particularly strong for nervous swimmers, solo visitors, and anyone hoping to see turtles or blacktip reef sharks with a guide nearby.
Skip it if you want a short, cheap outing or if eight and a half hours on a boat sounds tiring. Also remember that weather can change the route.
For most people staying in Ko Tao, this is one of the better ways to understand the island in a single day. You get beaches you cannot easily connect by road, a useful range of snorkeling sites, good food, and a sunset finish. Just bring cash for Nang Yuan, protect yourself from the sun, and accept that the sea gets the final say.
FAQ
How long does the Koh Tao snorkeling trip last?
The activity lasts 510 minutes, or about eight and a half hours.
Does the tour include hotel pickup and drop-off?
Yes. Pickup and drop-off at hotels in Ko Tao are included. The exact pickup time is confirmed by email after booking.
Is snorkeling equipment provided?
Yes. The boat provides a mask, snorkel, fins, and life jacket. You also receive a new snorkeling mouthpiece.
What food and drinks are included?
You receive a buffet lunch with six food choices and two seasonal fruits, plus a BBQ set dinner and virgin mojito. Unlimited bottled water, Coke, Sprite, tea, and coffee are included.
Is the Koh Nang Yuan entrance fee included?
No. The island entrance fee is not included in the tour price. Recent trip information advises bringing 250 baht in cash.
Are kayaks and paddleboards available?
Yes. Kayaks and paddleboards are available for free use during the trip.
What languages does the guide speak?
The live guide service is available in English and Thai.
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