Thailand · SE Asia

Koh Lanta

Gateway to Hin Daeng / Hin Muang · best big-fish drift in Thailand

Plan a trip Courses When to go Marine life About FAQs

Plan your Koh Lanta dive trip

Real, curated expeditions — or a custom Koh Lanta trip built around your dates, certification and the species you want to see.

Looking for a real expedition?

Browse our curated, small-group dive trips — fixed dates, vetted partner operators, zero agency fee. Or tell us your dates and certification level and we'll build a custom Koh Lanta trip with you.

Courses you can take in Koh Lanta

9 canonical courses bookable through iDive partner schools · all SSI+PADI certified · zero agency fee.

When to dive in Koh Lanta

Peak months mean clearest visibility, best marine sightings and stable weather. Shoulder is still good. Off-season often has rough conditions or monsoon.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Peak Shoulder Off-season
Best months: Jan–Apr, Nov–Dec. Book at least 6-8 weeks ahead — peak season fills early.

What you'll see in Koh Lanta

Marine life you can spot diving here. Click any creature to find trips that target sightings of it.

About diving in Koh Lanta

Koh Lanta is the easiest base to dive Hin Daeng — Thailand's deepest drift dive with manta and whale shark cameos.

What pulls divers to Koh Lanta: Gateway to Hin Daeng / Hin Muang · best big-fish drift in Thailand.

Diving conditions are typically moderate, with water temperatures around 27-30°C.

It's a particularly strong fit for couples, honeymoons, mid-range.

Frequently asked questions

When is the best time to dive in Koh Lanta?
Peak season is Jan–Apr, Nov–Dec — clearest visibility, calmest seas, best marine sightings. Shoulder months (May, Oct) are still good with thinner crowds. Avoid Jun–Sep unless you are chasing specific seasonal species.
Do Indians need a visa for Thailand?
Visa on arrival. Always confirm latest requirements with the embassy before booking flights.
How long is the flight from India and what does it cost?
Flights from major Indian cities are typically 4-6 hours, with one-way fares around ₹16K-26K. We can help you find the cheapest dates around your dive trip.
What can I see underwater in Koh Lanta?
Year-round you will see Leopard Shark, Manta Ray, Whale Shark, Blacktip Reef Shark, Hawksbill Turtle. Seasonal highlights: Manta Ray (Jan–Apr, Nov–Dec); Whale Shark (Jan–Apr, Nov–Dec); Green Turtle (Jan–Apr, Nov–Dec); Harlequin Ghost Pipefish (Jan–Apr, Nov–Dec); Painted Frogfish (Jan–Apr, Nov–Dec); Grey Reef Shark (Jan–Apr, Nov–Dec); Bowmouth Guitarfish (Jan–Apr, Nov–Dec).

Ready to dive Koh Lanta?

Tell us your dates, certification level and what you want to see — we'll match you to the right trip in Koh Lanta and lock the dates in minutes.

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