Last updated: February 2026 | The 4 Islands Tour is Koh Lanta’s most popular day trip — and for good reason. Crystal-clear water, stunning beaches, and unforgettable snorkeling await.
What is the 4 Islands Tour?
The “4 Islands” typically refers to a boat trip visiting four stunning locations off Koh Lanta’s coast:
- Koh Ngai (Ko Hai) — White sand paradise, excellent snorkeling
- Koh Mook — Home to the famous Emerald Cave (Tham Morakot)
- Koh Kradan — Crystal-clear water, vibrant coral reefs
- Koh Chueak — Small island with pristine snorkeling spots
Some tours swap islands or include Koh Maa (paradise sandbar) or Koh Rok for an upgraded experience.
Tour Prices 2026
| Tour Type | Price (THB) | Best For |
|---|---|---|
| Join-in Longtail Boat | ฿800 – ฿1,200 | Budget travelers, authentic experience |
| Join-in Speedboat | ฿1,400 – ฿1,800 | Comfort seekers, families |
| Private Longtail (6-8 pax) | ฿5,000 – ฿7,000 | Groups, flexible schedule |
| Private Speedboat | ฿12,000 – ฿20,000 | Luxury, privacy, custom itinerary |
Book 4 Islands & Boat Tours
Compare all Koh Lanta tour operators and book instantly:
Activities on Koh Lanta
Book through KOHME — compare prices & read reviews
What’s Included
Standard tour packages include:
- ✅ Hotel pickup & drop-off
- ✅ Longtail or speedboat transport
- ✅ Lunch (Thai buffet or set menu)
- ✅ Snorkeling equipment
- ✅ Drinking water & soft drinks
- ✅ National park fees (฿400 for foreigners)
- ✅ English-speaking guide
What to bring:
- 🧴 Reef-safe sunscreen (coral-friendly!)
- 👙 Swimwear (wear it under clothes)
- 🎒 Dry bag for phone/valuables
- 💵 Cash for drinks/tips
- 📷 Waterproof camera
Highlights of Each Island
🏝️ Koh Ngai
Stunning white sand beach with crystal-clear turquoise water. Perfect for swimming and relaxing. The coral reef starts just meters from shore — bring snorkel gear!
🌊 Koh Mook — Emerald Cave
The tour highlight! Swim through an 80-meter dark cave tunnel to reach a hidden lagoon surrounded by cliffs. Magical experience — bring a waterproof flashlight or headlamp.
Pro tip: Go early or late in the season to avoid crowds in the cave.
🐠 Koh Kradan
Often called the “Maldives of Thailand” — the water is ridiculously clear. Famous for its underwater wedding ceremonies. Best snorkeling of the trip.
🦀 Koh Chueak
Small rocky island with excellent snorkeling. Look for clownfish, parrotfish, and sea urchins. Less crowded than other stops.
Best Time to Visit
| Season | Recommendation |
|---|---|
| November – April | ✅ Perfect conditions, high season |
| May – October | ⚠️ Monsoon season — tours may be cancelled |
Private vs Join-In Tour: Which to Choose?
Choose Join-In if:
- You’re traveling solo or as a couple
- You want to meet other travelers
- Budget is a priority
- You’re flexible with timing
Choose Private if:
- You’re traveling with family/kids
- You want to skip/add islands
- You prefer your own schedule
- You want more time at each stop
Tips for the Best Experience
- Book early in high season — Popular tours sell out
- Avoid Emerald Cave at peak hours — Ask for early departure
- Bring cash — For beachside coconuts and souvenirs
- Use reef-safe sunscreen — Protect the coral!
- Sit at the back of longtails — Less bumpy ride
FAQs
Can I visit the 4 Islands on my own?
Technically yes, but it’s much more expensive. Longtail charters for a day cost ฿5,000+. The join-in tours are the best value.
Is the Emerald Cave scary?
It’s dark and you’ll need to swim through, but guides accompany you. If you’re claustrophobic, let them know — some people stay outside.
Are the tours good for kids?
Yes! Ages 4+ do well. Choose speedboat for a smoother ride. Life jackets provided for all.
How do I book?
Use the KOHME app to compare all operators, check reviews, and book with instant confirmation. Ready to go? book in the KOHME app to browse, compare, and book everything in one place.
📲 Book Your 4 Islands Adventure
Compare prices from all Koh Lanta tour operators. Real reviews, instant confirmation, no booking fees. Hungry after exploring? Try Koh Lanta restaurant delivery for a fuss-free meal back at your place.