Ko Lanta is one of Thailand’s top spots for snorkeling, thanks to its clear waters, coral reefs, and nearby islands. Whether you want a quick boat trip or a full-day adventure, the options are plentiful. We particularly like the Ko Lanta: 4 Islands Snorkeling Tour by Longtail Boat for its straightforward access to vibrant reefs, and the Snorkeling Tour to Rok and Haa Island by Speedboat for its high-energy speedboat ride. These tours offer a variety of marine life encounters and scenic beaches, making Ko Lanta a true haven for underwater exploration. With options ranging from relaxed beach days to action-packed boat trips, there’s something for all. If you’re short on time, the Koh Rok & Koh Haa Snorkeling Tour with Beachside Lunch provides a balanced mix of snorkeling and relaxing on pristine beaches. For full details, check out our top picks below.
Quick Overview
Our list highlights fifteen of the best snorkeling tours around Ko Lanta. From full-day island-hopping trips that include visits to Koh Mook’s Emerald Cave, to speedboat excursions zipping across the Andaman Sea, each offers something unique. Many tours include lunch, hotel transfers, and snorkel gear, making them convenient options for travelers. Whether you’re after family-friendly trips, busy marine life, or quiet beaches, you’ll find options; for example, the Ko Lanta: 4 Islands Snorkeling Tour by Longtail Boat is perfect for a relaxed day exploring several islands, while the Koh Rok and Koh Haa Snorkeling Tour with Beachside Lunch offers a deeper dive into marine diversity.
1. Ko Lanta: 4 Islands Snorkeling Tour by Longtail Boat
At number 1, this full-day snorkeling tour takes you to four distinct islands—Morakot Cave, Koh Ngai, Koh Ma, and Koh Chueak. The trip features longtail boat rides that give you a chance to explore less crowded reefs and beaches. You’ll see bright coral reefs, colorful tropical fish, and get a chance to sunbathe on white sandy beaches. Rated 4.2 out of 5 from 239 reviews, this tour is praised for its relaxed pace and beautiful scenery. The highlight is snorkelling near Koh Ma, where underwater visibility is excellent. Tour guide and boat crew are experienced, making for a smooth day. The price is budget-friendly at around $35 per person, offering good value for a full day of underwater fun. This trip suits travelers who want a simple, scenic experience without overcomplicated logistics.
Bottom Line: A low-cost, straightforward trip perfect for families or first-timers wanting to explore multiple islands in one day.
2. Ko Lanta: Snorkeling Adventure Tour to Koh Rok and Koh Haa
This 7-hour tour offers a full day exploring two of Thailand’s most celebrated snorkeling sites, Koh Rok and Koh Haa. For about $50, you’ll enjoy crystal-clear waters, vibrant reefs, and a delicious buffet lunch on Koh Rok’s pristine beaches. Rated 4.4 out of 5 from 117 reviews, it’s highly recommended. The itinerary includes snorkeling at Koh Rok, where marine life is abundant, and exploring the colorful reefs at Koh Haa. Many reviewers note the excellent water clarity and plenty of time to snorkel at each site, with some even observing parrotfish and clownfish. The tour includes hotel pickup and drop-off, making it very convenient. The guides are praised for their friendliness and expertise, adding a personal touch to the experience. It’s ideal for travelers craving a full day immersed in Thailand’s underwater beauty.
Bottom Line: Excellent value for a comprehensive day trip with quality snorkeling in some of the region’s most famous spots.
3. Koh Lanta: Koh Rok and Koh Haa Snorkeling Adventure
Offering an 8-hour exploration of Koh Rok and Koh Haa, this tour is rated 4.4 out of 5 from 39 reviews. It focuses on discovering vibrant marine life with opportunities to swim among schools of tropical fish and explore colorful coral reefs. Lunch is provided on the beach, and the scenery includes powdery white sands and calm, clear waters. What sets this tour apart is the balanced mixture of snorkeling and relaxation. Its value is high considering the full day and included meals, priced at $52. This trip suits those who want an immersive experience with plenty of time in the water and on the beach. Some travelers note the quality of the reef and the friendly guides. It’s best for snorkelers who want to see a variety of marine species without rushing.
Bottom Line: A well-rounded day for marine life lovers seeking quality snorkeling and scenic beaches.
4. Ko Lanta: Koh Rok & Koh Haa Snorkelling Tour by Speedboat
At number 4, this speedboat tour delivers a fast-paced, exhilarating day exploring Koh Haa and Koh Rok in just 6 hours. For $57, you get quick transfers to the islands, with snorkeling opportunities at large coral reefs teeming with marine life. This tour ranks highly with a 4.4 star rating from 33 reviews, with many noting the crystal-clear waters and excellent reef visibility. The speedboat allows visiting more sites in less time, making it perfect if your schedule is tight. Reviewers mention the clean boat and friendly crew, with some highlighting the possibility of snorkeling off the beach after lunch. It’s best for those who want a shorter, more energetic experience with fewer stops but plenty of underwater sights.
Bottom Line: Ideal for active travelers seeking a quick yet comprehensive snorkeling adventure.
5. Lanta 4 Islands + Emerald Cave Snorkeling Tour
This full-day tour combines visits to four islands and a trip into the famous Emerald Cave. It includes hotel transfers and a delicious Thai lunch, making logistics easy. Rated 4.0 out of 5 from 39 reviews, it covers Koh Ngai, Koh Muk, the Emerald Cave, and Koh Ngai Beach. The highlight is swimming through the underwater tunnel of Morakot Cave, a must-see as it reveals a hidden lagoon and sandy beach inside. The tour also offers time to relax on white sand beaches and enjoy marine life. It’s suited for travelers who want a combination of adventure and relaxation. Reviewers praise the well-organized itinerary and beautiful scenery. The only drawback noted is the longer duration, so it suits those with a full day available.
Bottom Line: A balanced option for those wanting both cave exploration and island beaches.
6. Snorkeling Tour to Rok and Haa Island by Speedboat From Koh Lanta
This group tour takes you to Koh Tan, with snorkeling at Koh Haa and white sand beaches. The 7 to 8-hour trip is rated a perfect 5 out of 5 based on one review, with travelers loving the crystal-clear waters and friendly guides. The tour includes hotel pickup, snacks, and snorkel gear, making it a hassle-free option. It’s priced at $64.50 per person, slightly higher but with a small group experience. Highlights include snorkeling in coral reefs, seeing clownfish, and relaxing on Koh Tan’s beaches. Reviewers mention the well-organized logistics and excellent marine life. This tour suits travelers who want a more intimate experience with all equipment included.
Bottom Line: Perfect for those seeking a small-group vibe with comprehensive snorkeling.
$64.50 per person
7. Koh Lanta: 4 Islands Tour by Speedboat with Snorkeling
This speedboat tour explores Koh Chuak, Koh Mook, Koh Kradan, and Koh Ngai. It includes snorkeling at coral reefs and visiting the Emerald Cave. Priced at $49, it offers 8 hours of island hopping. The reviews are modest, but the trip is noted for visiting multiple islands efficiently. The trip is suited for travelers who want to cover a lot of ground in one day and enjoy snorkeling at different locations. It’s a good value considering the full-day itinerary and hotel transfers included. Some travelers find the group size can be large, so it’s less suited for those who prefer a quieter experience.
Bottom Line: Best for travelers who want to see many islands quickly and snorkel at different reefs.
8. Snorkeling to Phi Phi Islands by Speedboat from Koh Lanta
Number 8 offers a day trip to Phi Phi Islands, including Maya Bay, Monkey Beach, and Bamboo Island. With a 7-8 hour schedule, it’s rated 4.0 from 16 reviews. The highlight is snorkeling at popular spots like Shark Point and seeing the famous Maya Bay from the movie “The Beach”. The trip includes buffet lunch and hotel transfers, making it a convenient choice. Many reviewers rave about the crystal waters and marine diversity, especially the chance to see sharks and colorful reefs. It’s suited for those wanting a quick glimpse of Phi Phi’s top attractions with plenty of underwater action.
Bottom Line: A solid choice for travelers interested in seeing Maya Bay and snorkeling in lively reefs.
9. Koh Ngai, Koh Muk + Emerald Cave Snorkeling Tour by Classic Longtail Boat
This 8-9 hour tour takes you to less crowded parts of the Trang islands, including Koh Ngai, Koh Muk, and the Emerald Cave. Rated 3.5 out of 5, this trip emphasizes authentic longtail boat rides and relaxing beach time. The main attraction is swimming through the 80-meter underwater tunnel into the secret lagoon inside Morakot Cave. It’s ideal for travelers seeking a more authentic, off-the-beaten-path experience. The tour includes snorkeling spots rich in marine life and free time on beaches. The reviews mention the beautiful scenery and friendly guides. It suits those willing to explore a quieter, more natural side of Thailand’s coast.
Bottom Line: Best for travelers wanting a quieter, more traditional boat experience with impressive cave swimming.
$40.23 per person
10. Koh Rok and Koh Haa Snorkeling Tour with Beachside Lunch
This full-day adventure takes you to Koh Rok and Koh Haa, with the added bonus of a beachside Thai lunch. Rated 4.5 out of 5 from 2 reviews, it’s praised for the crystal waters, large coral reefs, and relaxing beaches. The trip includes snorkeling at both sites, with plenty of time to relax on the soft sands. Its appeal lies in getting away from crowds and enjoying beautiful marine life. The price of approximately $55 makes it a solid value considering the full-day itinerary and included lunch. It’s suitable for those who want a combination of snorkeling, beach relaxation, and good food.
Bottom Line: A peaceful, well-rounded day for marine adventurers and beach lovers.
How to Choose Your Perfect Snorkeling Tour
When selecting a snorkeling experience in Ko Lanta, consider your budget, time availability, and interest level. Want a relaxed day exploring multiple islands? The Ko Lanta: 4 Islands Snorkeling Tour by Longtail Boat offers good value. If you prefer a quick adrenaline rush, the Koh Rok & Koh Haa Snorkeling Tour with Beachside Lunch is ideal. For a smaller group experience, check out the Snorkeling Tour to Rok and Haa Island by Speedboat From Koh Lanta. Budget travelers should compare the prices carefully; some trips include lunch and transfers, saving hassle and extra costs. Book early during peak season (November to April) to secure your spot, particularly for popular tours like the Phi Phi Island trip.
Final Thoughts
Ko Lanta offers a wide variety of snorkeling tours catering to different interests and schedules. For those seeking easy, budget-friendly options, the longtail boat tours are perfect. If you’re after marine diversity and full-day adventure, tours like the Koh Rok & Koh Haa trips deliver. Travelers with limited time can opt for speedboat excursions that cover multiple sites quickly, while those craving quieter, more intimate experiences should consider the less crowded islands.
No matter which tour fits your style, the key is to book early—these trips fill fast during high season. With crystal waters and colorful reefs just a boat ride away, Ko Lanta remains one of Thailand’s best places for authentic snorkeling experiences.