Reviewed · BIOLUMINESCENT PLANKTON TOURS
7 Island sunset tour by Speedboat | Catamaran plus BBQ & Plankton
Krabi’s evening light does more than make the islands look lovely. This trip links the famous four-island route with a sunset dinner and, if the water cooperates, a look at bioluminescent plankton glowing in the dark. The sandbar between Tup, Mor and Chicken islands is a highlight, but it appears only when the tide is low enough.
I love that you get snorkeling gear, drinks and a halal BBQ dinner in the price, with a vegetarian option available. I also like the mix of beach time, island scenery and a possible plankton sighting, rather than spending the whole outing on the boat. The main consideration is that the tide, weather and darkness affect what you actually see, and some stops may be brief or viewed from offshore.
The details worth knowing before you book

- The sandbar is tide-dependent: Tup, Mor and Chicken islands can be joined by a walkable strip of sand when the water is low.
- Sunset is part of the plan: The group spends about 90 minutes at Poda Island, where the sunset is viewed.
- Plankton sightings are not guaranteed: The water must be dark, and visibility depends on conditions.
- The meal is included: Expect a BBQ dinner described as 100% halal, with a vegetarian option, plus bottled water, soda and snacks.
- There is an extra park fee: Budget 200 baht per adult or 100 baht per child, paid separately.
- The group can reach 35 people: A lively boat and shared island stops are part of the deal, not a private outing.
An afternoon route that builds toward sunset

The tour starts at 2:30 pm and lasts about five to six hours. Pickup is offered, and the trip returns to the starting point. The named meeting address is in Ao Nang, while people staying at Railay meet at Railay East’s floating blue pier. Confirm your pickup or meeting arrangement when you book, since the exact start depends on where you are staying.
This is not a quiet private cruise. The group can include up to 35 people, and you share the boat, beach stops and dinner setting. That can make the price attractive, especially with transport, food, drinks, snorkeling equipment and an English-speaking guide included. It also means you should expect some crowding at popular stops and bring patience when boarding or getting organized.
The advertised trip uses a speedboat, though one person expected a longboat and only learned shortly before departure that the vessel was a speedboat. The title also refers to a catamaran, so if the boat type matters to you, ask the operator to confirm what will be used on your date. Boat type can shape how the ride feels, and expectations are easier to manage before you arrive.
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Railay East, a practical meeting point

Railay East is listed as a brief 20-minute stop, and it is also the meeting point for people staying on Railay. A long, floating blue pier reaches out from shore, with mangroves and limestone cliffs around the water. It is a useful place to gather the group and board, rather than a long beach visit.
If you are staying in Ao Nang, the departure point is GR Rungtawan Co., Ltd. in Ao Nang. Hotel transfers are included in the package, but because a specific meeting address is also provided, check the details of your own booking to know whether you will be collected or should go to the meeting point. That small check can prevent a rushed start.
Phra Nang Cave and its unusual shrine
The boat then visits Phra Nang Cave, with about an hour allotted. The cave contains a small Buddhist shrine surrounded by phallic offerings, an unusual local religious site that gives this beach stop more character than a simple photo break. Fine sand and views toward Chicken and Poda islands round out the setting.
You can expect time to look around, swim or take in the shoreline, but the precise pace may depend on the day’s conditions and group. Bring a beach towel and a change of clothes if you plan to swim. The sand and water are part of the appeal, but the visit is still one stop in a route with several islands to fit into an afternoon.
Chicken Island and the shape of the route

Chicken Island takes its name from a limestone pillar that resembles a chicken’s head. The guide brings the group close enough for photos, and the island is also associated with snorkeling. The scheduled stop is about an hour, though the itinerary does not include the national park entrance fee in the tour price.
The snorkeling equipment is provided, which saves you from bringing a mask and snorkel. The exact place you snorkel may vary: accounts of the outing describe snorkeling from the boat in open water, rather than only from the beach. If snorkeling is your main reason for booking, ask the guide what conditions are like on the day and remember that visibility and water conditions can change.
This is one of the stops where expectations matter. The tour name promises seven islands, but the experience does not guarantee a long visit on every island. Some places may be photo stops or seen from the boat, and the order and time ashore can change with tide and weather. Treat the route as an island-hopping outing, not a checklist with equal time at seven beaches.
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Tup and Mor, where the tide makes the view

Tup Island is known for a sandbar that can connect it with nearby islands when the tide falls. Mor Island is one of those neighbors, and Chicken Island is part of the same cluster. When water levels allow, you can walk across the sand linking the three, turning a boat trip into a short stroll over the sea floor.
That connection is the route’s most tide-sensitive feature. At a favorable low tide, the sandbar can be a memorable, hands-on part of the afternoon. At a higher tide, the strip may be reduced or unavailable. The operator notes that both the sandbar and itinerary depend heavily on tides, so don’t plan your day around a guaranteed walk between islands.
Allow for sun exposure while you are out on the sand. Sunglasses and sunscreen are specifically worth packing, along with water-friendly clothes and a towel. The tour supplies bottled water and soft drinks, but personal sun protection remains your responsibility.
Poda Island at sunset, with dinner on the shore

Poda Island gets the longest scheduled stop, about an hour and a half. It has white-sand beaches and clear turquoise water, and it is the planned place to watch the sunset. This longer pause gives the outing room to slow down after the earlier island visits, with time for a swim or a walk before dinner.
The BBQ dinner is included and is described as 100% halal, with a vegetarian choice available. Snacks, bottled water and canned soda are also included. One practical point: the meal is dinner, not lunch, so have something to eat beforehand if you tend to get hungry during an afternoon on the water.
A toilet is noted at the island where dinner is served, which is useful on a half-day boat trip. Still, facilities and comfort can feel basic compared with a restaurant meal. The draw is the beach setting and the fact that food is arranged for you, not a formal dining service.
Poda is also where the sunset is viewed, but the exact light depends on weather and the schedule. Cloud cover can soften or obscure the view, and changing conditions can affect how long the boat stays. Keep your expectations flexible and enjoy the island itself, not only the sunset photograph.
Railay Beach after dark and the plankton question

The final planned highlight is bioluminescent plankton near Railay Beach, with roughly 30 minutes set aside. In dark water, the tiny organisms can produce a visible glow. It is an unusual way to end an island outing, but the sighting depends on conditions, especially how dark it is and whether plankton are visible.
The tour cannot guarantee the glow. If the sky is bright, the water is disturbed or plankton are not present in a visible amount, you may see little or nothing. Think of this as a possible bonus rather than the one reason to book. The trip still includes sunset, beaches, snorkeling and dinner even if the plankton do not show.
What the price includes, and what it does not

At $51.63 per person, the price bundles a five- to six-hour trip with hotel transfers, an English-speaking guide, snorkeling equipment, dinner, water, soda and snacks. That is a fair package if you want an organized route and do not want to arrange boat transport and food separately. Its value rests on the whole afternoon, not on a guaranteed plankton encounter or seven lengthy island visits.
The national park fee is extra: 200 baht per adult and 100 baht per child. Factor that into your budget, since it is not included in the advertised price. The fee is listed twice in the tour details, but the charge itself is stated as 200 baht for adults and 100 baht for children.
The tour is commonly booked about 19 days ahead, so reserve earlier if your dates are fixed. Free cancellation is available up to 24 hours before the start; changes and cancellations inside that period are not accepted for a refund. If poor weather cancels the trip, you are offered another date or a refund.
Who will enjoy this Krabi island outing
I would choose this tour if I wanted a guided afternoon that combines several familiar Krabi sights with food and a chance at a rare night-time natural display. It suits people who are happy to share a boat, make quick transitions between stops and accept that tides can reshape the route. The included gear and meal make the day straightforward for anyone who would rather not organize each piece independently.
It is less suited to someone who wants a private boat, guaranteed quiet beaches or a long visit at every named island. The group size can reach 35, and one account described other people on board as pushy or inappropriate. That is not a predictable feature of every departure, but it is a reminder that a shared group outing depends partly on the behavior of people you do not know.
The guides can shape the mood. Guides named M and Selina have been praised for being energetic, clear and accommodating, but you cannot count on having either one on your date. A good guide can help the group stay organized and make the trip more fun; still, it is sensible to keep your own expectations and boundaries.
Pack a beach towel, sunglasses, sunscreen and extra clothes. The tour provides a mask and snorkel, water, soda and snacks. Wear something comfortable for swimming, and keep valuables and electronics protected from water.
Should you book the seven-island sunset tour?
Book it if the combination appeals: Krabi’s island scenery, a sandbar that appears at the right tide, snorkeling, a halal BBQ and a possible plankton glow. For the price, having transport, food and equipment included makes the outing a practical choice, particularly if you want someone else to coordinate the route.
Skip it if you need a guaranteed seven-stop itinerary, a specific type of boat, or a quiet private experience. Before paying, confirm your pickup details and boat type, and treat the sandbar and plankton as weather-dependent extras. With those expectations set, this is a useful way to turn an afternoon in Ao Nang or Railay into a sunset outing on the water.
FAQ
How long is the tour?
It lasts approximately five to six hours. The listed start time is 2:30 pm, and the activity ends back at the meeting point.
Where does the tour start?
The named meeting point is GR Rungtawan Co., Ltd. in Ao Nang. Pickup is offered, and people staying at Railay meet at Railay East. Check your booking details for your exact arrangement.
Is the national park fee included?
No. The fee is listed as 200 baht per adult and 100 baht per child, payable separately.
Is dinner included, and are vegetarian meals available?
Yes. A halal BBQ dinner is included, and a vegetarian option is available. Bottled water, canned soda and snacks are also included.
Is snorkeling equipment provided?
Yes. The tour includes use of a mask and snorkel. The snorkeling location can depend on conditions and the guide’s plan.
Will I definitely see bioluminescent plankton?
No. Visibility depends on conditions, including darkness and plankton availability. The plankton stop is planned for about 30 minutes.
What happens if bad weather cancels the tour?
You will be offered a different date or a full refund if the experience is canceled because of poor weather.
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