Koh Rok Snorkelling Day Trip From Koh Lanta: Tour, Prices & Travel Guide
Koh Rok: clear water and shallow reefs 30 km south of Koh Lanta
Koh Rok is the best snorkelling day trip from Koh Lanta. These twin islands, Koh Rok Nok and Koh Rok Nai, sit about 30 km south of Koh Lanta inside Mu Ko Lanta National Park. They have fine white coral sand, clear water and reefs just a few metres below the surface.
Most tours also stop at Koh Haa, a group of limestone islets with a sheltered lagoon. This guide covers the tour, exact prices from two sellers, park fees and what to expect.
Quick facts
| Detail | Information |
|---|---|
| Location | About 30 km south of Koh Lanta |
| National park | Mu Ko Lanta National Park |
| Boat time | About 1 to 1.5 hours by speedboat |
| Tour length | About 7 to 8 hours, including hotel transfers |
| Park fee | ฿400 adult, ฿200 child (cash, not included in tours) |
| Open | November to mid-May. Closed 16 May to 31 October |
| Best for | Snorkellers, families and beach lovers |
What you'll see
Koh Rok Nok and Koh Rok Nai
Koh Rok: about 500 metres of fine white coral sand
Koh Rok is two islands separated by a shallow channel. The main beach on Koh Rok is about 500 metres long and is where day-trip boats land for lunch.
Travelfish says visibility is usually excellent and much of the coral lies within five metres of the surface. You'll often see angelfish, pufferfish and anemones, with occasional turtles and sharks.
Koh Rok: watch for large monitor lizards near the beach
Look out for large monitor lizards resting among the fallen leaves near the beach.
Koh Haa
Koh Haa: a lagoon ringed by limestone cliffs
Koh Haa means "five islands" in Thai. It's a cluster of limestone islets northwest of Koh Rok, with a lagoon surrounded by cliffs. It's great for swimming, snorkelling and photos. One tour guide mentions turtles, moray eels and colourful fish here.
Typical day itinerary
Koh Lanta: speedboats leave for Koh Rok at about 9:30am
| Time | What happens |
|---|---|
| 8:00am to 9:00am | Hotel pickup on Koh Lanta |
| 9:30am | Speedboat departs for Koh Rok Nok (about 1 hour) |
| Late morning | Snorkelling at 2 spots around Koh Rok, about 40 minutes |
| 12:30pm | Beach buffet lunch and free time on Koh Rok |
| 2:10pm | Speedboat to Koh Haa (about 40 minutes) |
| Afternoon | Snorkelling in the Koh Haa lagoon |
| 3:50pm | Return to Koh Lanta pier, then hotel drop-off |
Based on the Koh Lanta Tours schedule. Times vary by operator and sea conditions.
Exact prices from two sellers (October 2026)
| Seller | Adult | Child | Park fee included? | Link |
|---|---|---|---|---|
| Koh Lanta Tours | ฿1,595 | ฿1,295 (ages 4 to 11), infants free | No | View tour |
| Tin Adventure Sea Tour (via Phi Phi Tours) | ฿1,700 (regular ฿3,400) | ฿900 (ages 3 to 11, regular ฿1,800) | No | View tour |
Park fee: ฿400 per adult and ฿200 per child, paid in cash on arrival at Koh Rok.
- Tin Adventure's discounted price applies when you book more than 24 hours ahead. Its cancellations are non-refundable unless made more than 30 days ahead.
- Koh Lanta Tours says its lunch includes halal and vegetarian options. Ask your operator if you need halal food.
- Tin Adventure Sea Tour scores 4.5 out of 5 from 130 reviews on Tripadvisor. One April 2026 reviewer called it "a good way to experience two beautiful islands without too many people."
What's usually included
Koh Rok: a beach buffet lunch is part of most tours
- Return hotel transfers on Koh Lanta.
- Speedboat transport.
- Beach buffet lunch, water, soft drinks and fruit.
- Mask and snorkel (some include fins).
- Life jacket and accident insurance.
- English-speaking guide.
Not included: national park fee, personal travel insurance and personal expenses.
Who can go?
Koh Rok: shallow water for children who are not strong snorkellers
Children from about 3 or 4 years old can join, depending on the operator. Tin Adventure accepts ages 3 to 70, with travellers aged 60 to 70 needing their own travel insurance. Pregnant travellers and those with heart or back problems can't book.
The shallow beach at Koh Rok is good for kids who aren't strong snorkellers.
Staying overnight on Koh Rok
Koh Rok: basic park camping in high season
Koh Rok has basic park camping in high season. Travelfish lists standard tents at ฿450 a night, or ฿30 to pitch your own tent, with shared cold-water bathrooms. Staying overnight means you can snorkel after the day boats leave.
Best time to go
Go between November and April for calm seas and clear water. Tours don't run from 16 May to 31 October, when the park closes for the rainy season. Tours aren't cancelled for rain alone, only for unsafe seas.
What to bring
- Cash for the ฿400 park fee.
- Reef-safe sunscreen.
- A rash guard or long-sleeved swim top for sun protection.
- Your own mask if you're fussy about fit. Some reviewers say gear quality varies.
- A dry bag and a waterproof phone case.
- Seasickness tablets for the hour-long crossing.
Tips
- Book at least a day ahead in peak season.
- Sit at the back of the speedboat if you get seasick.
- Keep your park ticket. It may be valid for a few days at other park sites.
- Watch your step near the beach for monitor lizards.
- Don't stand on or touch the coral.
Common mistakes to avoid
- Planning a Koh Rok trip between mid-May and October.
- Forgetting cash for the park fee.
- Booking a non-refundable tour without checking the weather forecast.
- Using regular sunscreen in the marine park.
- Expecting the same tour to include the Emerald Cave. That's the 4 Islands tour.
Sourced from Koh Lanta Tours' Koh Rok and Koh Haa tour and Koh Rok guide, Phi Phi Tours Koh Rok and Koh Haa tour, Tripadvisor reviews, Travelfish Ko Rok, Thai Holiday Guide Mu Ko Lanta National Park and Happy To Visit. Prices checked in October 2026.