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Koh Larn

เกาะล้าน

Pattaya's Island Escape

Intermediate

The largest island off Pattaya with multiple dive sites around its coastline, from shallow coral to deeper walls.

Depth Range

3–22m

Site Type

island reef

Pattaya & Sattahip

Visibility

5–15m

26–30°C

Getting There

45 min ferry from Pattaya

~8 km from Pattaya

Live 7-Day Conditions — Koh Larn
SST ~30.7°C
Thu
2 Jul
47
marginal
22km/h SW
0.7m
Fri
3 Jul
47
marginal
21km/h SW
0.8m
Sat
4 Jul
49
marginal
25km/h SW
0.9m
Sun
5 Jul
49
marginal
23km/h SW
0.8m
Mon
6 Jul
49
marginal
21km/h SW
0.8m
Tue
7 Jul
47
marginal
21km/h SW
0.7m
Wed
8 Jul
49
marginal
23km/h SW
0.8m

Marine Life

Barracuda Groupers Nudibranchs Seahorses

Notable Features

  • Multiple dive sites around island
  • Ferry accessible from Pattaya
  • Macro diving

Best Time to Visit

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Peak Good Now

About Koh Larn

Koh Larn (Ko Lan) is Pattaya's main island, just 45 minutes by ferry. While famous for its beaches, the island also has multiple dive sites around its perimeter with coral reefs dropping to 22m. The eastern side is more sheltered and has better visibility. Despite proximity to busy Pattaya, the reefs support decent marine life including macro favorites.

Tips

Visibility is best November–March. Avoid weekends when the island is packed with day trippers.

Experience Required

Beginner to intermediate depending on site.

Location

GPS: 12.9200°N, 100.7800°E

Learn to Freedive in the Gulf of Thailand

Sites like Koh Larn are what the Gulf has to offer. Get certified with us on Koh Samui — train at Sail Rock and Koh Tao in groups of no more than 3, skip the Koh Tao ferry, and dive the best of the region.

New to freediving? Get the free beginner's guide first.

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