REVIEW · KRABI FOUR ISLAND AND HONG ISLAND TRIPS
Krabi 7 Islands Snorkeling & Plankton Night by Big Longtail Boat
A longtail boat, seven island moments, and night glow. It is a packed Krabi combo built for snorkeling, a sunset meal, and the Andaman Sea’s plankton magic. I really like the variety of island stops, from coral snorkeling to sandbar time, and I also love the bioluminescent plankton night swim that feels like swimming in outer space. One thing to keep in mind: the boat day can be cramped, and you may get soaked, especially if you sit near the front rows.
This is the kind of tour where you live outside. You start from Krabi or Ao Nang, ride out on a big longtail boat, and spend a big chunk of the day hopping between Ko Ya Wa Sam, Chicken Island, Tup, Mor, Ma Ta Ming, Poda, and Ko Rang. Then you finish with a night stop focused on glowing plankton, followed by drop-off back to your hotel. At about $52.23 per person, it is good value if you want a lot of water time for one price, not if you only want one beach and an easy pace.
Weather and sea conditions can change the plan. The tour itself runs about 7 to 8 hours, starts at 12:00 pm, and most activities depend on conditions. If seasickness hits you, or you hate awkward boarding ladders, this is worth thinking through before you book.
In This Review
- Quick Key Points Before You Go
- The Best Part: A True Day and Night Krabi Sea Experience
- Price and What You Actually Get for $52.23
- Getting on the Boat: Timing, Piers, and Real-World Waiting
- The Boat Ride Comfort Check (And Why It Matters)
- Stop-by-Stop: What Each Island Time Is Really For
- Ko Ya Wa Sam: First Snorkel Hit
- Chicken Island: Coral Reefs and Fish Time
- Tup Island and the Sandbank Connection
- Ko Mor and Thale Waek: Sandbar Walking Vibes
- Ko Ma Tang Ming: Short Snorkel and Swim Break
- Poda Island: Relaxing, Swimming, and the Sunset Dinner Window
- Ko Rang Beach at Night: Bioluminescent Plankton
- Snorkeling Reality: Expect Fish, Not Perfect Conditions
- Food, Drinks, and the Real BBQ Expectations
- Safety and Boat Manners: How to Make This Trip Easier
- Who This Tour Suits Best
- Should You Book Krabi 7 Islands Snorkeling and Plankton Night?
- FAQ
- What time does the tour start, and how long does it last?
- Where do I meet for the tour in Ao Nang or Krabi Town?
- Is round-trip transfer included?
- What snorkeling gear and safety items are provided?
- Is the national park fee included in the price?
- What food and drinks are included?
- Can you always see the plankton at night?
Quick Key Points Before You Go

- Seven island-style stops in one afternoon-evening run, with snorkeling built into multiple segments
- Night bioluminescence after dark at Ko Rang, where rain and moonlight can affect how visible it is
- Buffet dinner during the sunset window, plus fruit, Thai snacks, soft drinks, and water
- Big longtail boat experience with a lot of time on the water, so comfort and timing matter
- Snorkeling mask and life jacket included, and an English-speaking guide is on hand
- Not all fees are included, especially the national park fee paid at entry
Krabi island loops also got a going over
- Krabi: Hong Islands Day Trip by Speedboat with Lunch★ 4.5 · 3,952 reviews
- Krabi: 7 Island Tour by Luxury Longtail Boat with Snorkeling★ 4.6 · 1,063 reviews
- Krabi: 4 Islands Tour by Longtail Boat & Thai Buffet Lunch★ 4.4 · 1,038 reviews
- Phi Phi Early Bird & 4 Islands – Day Tour by Speedboat From Krabi★ 5.0 · 986 reviews
The Best Part: A True Day and Night Krabi Sea Experience

This tour is built around a simple idea: see Krabi’s islands by day, eat with a sunset view, then do the famous night plankton swim. That structure is what makes it stand out from the usual “one island and done” boat trips.
Daytime gives you multiple chances to snorkel. You are not stuck doing everything in one spot, and that matters because visibility changes. On some days you might get clearer water in one bay, then softer views in another. Nighttime is different. You are not going for big scenery then. You are going for a specific moment, glowing plankton in the dark water, and that is why the day feels so intentional.
If you are trying to cover a lot of ground without renting a private boat, this is one of the more efficient options.
Price and What You Actually Get for $52.23

At $52.23 per person, the value is mostly in how much is bundled: a boat day with seven island stops, snorkeling gear, dinner with drinks, and round-trip transfer from Krabi Town and Ao Nang.
What you do need to budget for:
- National park fee paid at entry: 200 THB per adult, 100 THB per child
- Extra transfer charge: 100 THB per person for the Klong Muang and Tub Kaek areas
That is not a deal-breaker, but it is money to plan for so the day feels smooth, not surprising.
Also, the tour is not marketed as luxury. It is a big longtail boat setup. If you want wide seating and zero waiting, a private charter is the better match. If you want a full Krabi sea day and you can roll with crowds, the price makes sense.
Getting on the Boat: Timing, Piers, and Real-World Waiting

Start time is listed as 12:00 pm, with the meeting point at Nopparat Thara Pier in Ao Nang. The activity ends back at the meeting point, so you are not left hunting for a way home.
Two practical notes from what I’d watch for on a tour like this:
- Allow buffer time at the pier. Group tours can shift pick-up times and schedules if transfers arrive in waves.
- Double-check your meeting point if you are staying in areas like Railay or Tonsai. The meeting instructions vary by hotel location.
In other words, arrive a little early, bring a cover-up for waiting, and keep your schedule flexible. The sea is in charge, not your phone clock.
The Boat Ride Comfort Check (And Why It Matters)

This is the big longtail boat part of Krabi life. The tour caps at 30 travelers. In practice, that can still feel tight when everyone is trying to get down a ladder, find a dry spot, and get ready for snorkeling.
A few comfort realities:
- You get life jackets and snorkeling masks provided. That helps, but you still need to manage getting in and out.
- The boarding process involves climbing in and out of the boat. If you are not steady on your feet, you will feel it.
- You can get wet from waves and splashes. If you sit near the front rows, expect more spray. Bring swimwear you are comfortable staying in for hours.
The upside is you feel the island scenery from the water. You see the coastline and rock formations from angles that land-based trips never capture.
Thai longtail runs also got written up
Stop-by-Stop: What Each Island Time Is Really For

The itinerary is designed like this: snorkel first, then sandbank and swimming, then relax for the main dinner and sunset segment, then finish with night plankton.
Ko Ya Wa Sam: First Snorkel Hit
Ko Ya Wa Sam is your first chance to get underwater, with about 1 hour of snorkeling time. This is where you ease into the day, check your fit with the mask, and see whether the water has that reef-life sparkle.
One thing I’d remember: snorkeling conditions can swing fast. Currents and surface chop can reduce visibility. If water is a bit murky, focus on slow movement and short bursts. That usually gives you more fish contact than trying to sprint toward the far edge of a reef.
Chicken Island: Coral Reefs and Fish Time
Next is Chicken Island for another 1 hour of snorkeling. This stop is popular, and the layout usually gives you good chances to see reef life.
In plain terms, this is your classic Andaman snorkeling moment. You are aiming for fish schools and coral edges, not big open-water swimming.
Tup Island and the Sandbank Connection
Then comes Tup Island. You spend about 1 hour, and this is where the low-tide sandbank comes into play. One of the most memorable features here is the feeling of walking between islands when the sand connects them.
This segment is partly a view moment and partly a tide moment. If the sandbar is reachable and conditions are calm, it feels special. If timing is off due to sea conditions, it can be shorter or less of a walk than you expect. Either way, it is a scenic break from pure snorkeling.
Ko Mor and Thale Waek: Sandbar Walking Vibes
Ko Mor is listed as another 1 hour stop, and this is where the itinerary references Thale Waek, a sand bar connecting Chicken Island, Tup, and Mor.
This part is best approached like a slow stroll, not an exercise. You are moving through shallow water and sand. Watch your footing, and keep an eye on where you step, since slippery surfaces are easy to misjudge.
Ko Ma Tang Ming: Short Snorkel and Swim Break
Ko Ma Tang Ming is shorter, about 30 minutes. That time is usually used for quick snorkeling and some swimming.
This stop is a good reminder that the day is not evenly weighted. You will have longer relax-and-snorkel blocks, then brief hit-and-move segments.
Poda Island: Relaxing, Swimming, and the Sunset Dinner Window
Poda Island is where you get the longer stretch, about 2 hours. This is also where the sunset meal lands in the flow of the day, with a buffet dinner served while you watch the evening.
The food setup is a buffet style meal with fruit, Thai snacks, drinking water, and soft drinks included. Some days run more BBQ-feeling than others, but the consistent part is you eat without hunting for a restaurant.
If you want to photograph the sunset, bring your patience. After a day on a boat, the crowd energy at sunset is real, and your timeline is shared with everyone else on the water.
Ko Rang Beach at Night: Bioluminescent Plankton
Ko Rang is the night stop, about 30 minutes, focused on plankton glowing in the water. The biggest thing to know is this: the plankton effect is not like the huge, electric blue photos you sometimes see online.
What you do get, when conditions cooperate, is a field of tiny flashes, often white or subtle glowing specks that show up when you move underwater. It can feel like you are creating your own light show by swimming gently.
Rain and moonlight can reduce the effect. If it has rained recently, the glow can be weaker. If the moon is bright, you might have trouble seeing the light the way you hoped.
Snorkeling Reality: Expect Fish, Not Perfect Conditions

I like this tour because it gives you multiple snorkeling shots rather than one single gamble. But the sea is the sea. Wind, current, and surface chop can affect each stop.
Here is what I would do to get the best out of it:
- Keep swims short and controlled, especially at stops with stronger current.
- Use the guide and crew instructions. The biggest snorkeling frustration comes from people rushing and kicking coral or standing on reef areas.
- If you have motion sickness, plan for it. You will still be on the boat between the snorkeling and dinner segments, and that can be unpleasant if you are sensitive.
The guides can be a big help here. Some guides are known for being attentive and even offering to help with photos or pointing out fish. Names I’ve seen associated with great service include Pong and AJ.
Food, Drinks, and the Real BBQ Expectations

Dinner is a key part of why the schedule works. You are fed before the night plankton swim, which is important after hours on the boat.
Included food and drinks:
- Buffet dinner
- Drinking water
- Fruit
- Soft drinks
- Thai snack
From what I’ve learned, quality can vary by day, and some plates may be more overcooked or less impressive than others. That said, there is usually enough choice to keep you happy. Vegetarian options show up too, so you are not stuck with only one side dish.
If you get hungry between snorkeling stops, it is smart to treat the provided snacks as part of the plan and pace your energy. Also, after sunset, you might not want to eat much more because you are switching into night-water mode.
Safety and Boat Manners: How to Make This Trip Easier

This tour includes a life jacket and snorkeling equipment, plus accident insurance. Those are the basics, but your own habits decide whether the day feels safe and relaxed.
Here’s my practical checklist:
- Wear the life jacket when told, especially on transfers and entry steps.
- Take your time climbing in and out of the boat. If the ladder feels awkward, do not rush.
- Keep hands and feet off coral. It is bad for the reef and also creates tension in the water.
- If you are not confident in ladders or have balance issues, tell the crew before you get in the water.
Also, the tour notes that guests who are pregnant or have high blood pressure, heart disease, or bone diseases are not recommended. If any of those apply, it is best to skip this kind of active boat day.
Who This Tour Suits Best
This experience is a strong match if you:
- Want multiple snorkeling chances in one day
- Like a schedule with snorkel, relax, sunset dinner, then night glow
- Prefer guided logistics over planning tides, transfers, and boats yourself
- Travel as a couple, family, or group where everyone is okay with a long day outside
It is not the best pick if you:
- Want a quiet, uncrowded experience
- Expect luxury comfort on a longtail boat
- Cannot handle rough boarding and ladder entry
- Are very sensitive to motion sickness
- Need guaranteed sunset visibility or guaranteed plankton glow, since both depend on conditions
Should You Book Krabi 7 Islands Snorkeling and Plankton Night?
I’d book it if your goal is a full Krabi sea day with real variety, not if you want a relaxed sunbathing afternoon.
Book it when:
- You are excited about snorkeling at several islands and you want the chance to see fish in different spots
- You are specifically curious about bioluminescent plankton and you understand that the effect can be subtle
- You like the idea of sunset dinner on the way before heading into night swimming
Skip or choose something else when:
- You hate crowds and cramped boats
- You are worried about awkward ladder boarding
- You need your sunset and plankton to be 100 percent guaranteed, because weather and moonlight can change what you see
FAQ
What time does the tour start, and how long does it last?
The tour starts at 12:00 pm and runs about 7 to 8 hours.
Where do I meet for the tour in Ao Nang or Krabi Town?
You meet at Nopparat Thara Pier (Ao Nang) for the start of the activity.
Is round-trip transfer included?
Yes, you get free round-trip transfers from Krabi Town and Ao Nang. If you are in the Klong Muang or Tub Kaek area, there is an extra 100 THB per person transfer charge.
What snorkeling gear and safety items are provided?
The tour provides a snorkeling mask and a life jacket, and it includes accident insurance.
Is the national park fee included in the price?
No. The national park fee is 200 THB per adult and 100 THB per child, and it is paid at the point of entry.
What food and drinks are included?
You get buffet dinner, plus fruit, drinking water, soft drinks, and Thai snacks.
Can you always see the plankton at night?
No. The plankton experience depends on weather and conditions, and it can be less visible with rain or full moon.
What else made it into the Thailand notebook
Hours in a longtail, continued
Four island and Hong island loops, continued
What else made it into the Krabi notebook
- From Krabi: Hong Island Sunset Tour+Bioluminescent Plankton
★ 4.3 · 20 reviews - Ao Nang to Koh Phi Phi by Ao Nang Princess Ferry
★ 3.5 · 21 reviews - Blue Dragon Cabaret Show Ticket – Krabi
★ 4.5 · 21 reviews - 7 Island sunset tour by Speedboat | Catamaran plus BBQ & Plankton
★ 4.0 · 21 reviews - Krabi: Hong Island Tour by Longtail Boat with Kayak Option
★ 3.8 · 21 reviews - Krabi: Emerald Pool, Hot Springs, and Kayaking Tour
★ 4.4 · 21 reviews
Krabi Four Island and Hong Island Trips, compared.
★ 4.5Premium 4-Island Day Trip by Longtail Boat with LunchFrom $394,812 reviews
★ 4.5Hong Islands Day Trip by Speedboat with LunchFrom $433,952 reviews
★ 4.37 Islands Sunset Tour with Buffet Dinner & SnorkelingFrom $392,916 reviews
★ 4.27 Island Longtail Boat Snorkeling Tour with SunsetFrom $381,076 reviews
★ 4.67 Island Tour by Luxury Longtail Boat with SnorkelingFrom $371,063 reviews
★ 4.44 Islands Tour by Longtail Boat & Thai Buffet LunchFrom $341,038 reviews
★ 5.0Phi Phi Early Bird & 4 Islands – Day Tour by Speedboat From KrabiFrom $81986 reviews
★ 4.44 Islands Day Trip by Speedboat Including Lunch BoxFrom $35858 reviews
Browse the lists this tour appears in





