Koh Larn (Coral Island),Thailand

Koh Larn (Coral Island) is a small island located about 7 kilometers off the coast of Pattaya in the Gulf of Thailand. It is valued primarily for its natural marine environment—clear waters, white-sand beaches and coral reefs—which make it an important local snorkeling and day-trip destination. The island supports a small local fishing community and has become an accessible example of Thailand's coastal tourism, blending traditional Thai island life with modern leisure activities.

Places to visit

  • Tawaen Beach (largest and most developed beach)
  • Samae Beach (good for swimming and less crowded)
  • Nual Beach / Monkey Beach (known for monkeys and snorkeling)
  • Tien Beach (scenic and quieter)
  • Tonglang Beach (relaxed atmosphere)
  • Island viewpoint/short hike for panoramic views
  • Coral reefs and snorkeling sites

Unique Aspects

  • Clear, turquoise waters and several white-sand beaches
  • Accessible coral reefs for snorkeling and diving
  • Short boat transfers from Pattaya (frequent day-trip service)
  • Compact island size — easy to explore by foot, scooter or rented tram
  • Vibrant beachside eateries serving fresh seafood
  • Good range of water-sports operators (parasailing, jet-skiing, banana boats)

Things to do

  • Snorkeling over coral patches and spotting tropical fish
  • Swimming and sunbathing on multiple beaches
  • Water sports: parasailing, jet-skiing, banana-boat rides
  • Glass-bottom boat trips and short dive excursions
  • Hiking to viewpoints for island panoramas and photography
  • Renting a scooter or local tram to tour the island
  • Dining on fresh seafood at beachside restaurants and cafes

Best Time to Visit

Best time to visit: November to April (cooler, dry season with calmer seas and best visibility for snorkeling).

Weather Conditions

Tropical monsoon climate. Typical temperatures range from about 25–33°C (77–91°F). Rainy season runs roughly May to October with heavier showers and choppier seas; the dry season (Nov–Apr) is sunnier and more pleasant for water activities.

Accessibility

How to get there: The island is served by regular boat services from Pattaya’s Bali Hai Pier (central Pattaya). Transfer times: public ferry or slower boats typically take around 30–45 minutes; speedboats take roughly 10–20 minutes depending on sea conditions. Nearest major airports: Bangkok (Suvarnabhumi BKK and Don Mueang DMK, ~2–3 hours by road to Pattaya) and U-Tapao Rayong–Pattaya (closer, ~45–90 minutes by road). From Bangkok or the airport, travelers can reach Pattaya by bus, private taxi, or shared minivan; from Pattaya center take a short taxi/songthaew ride to Bali Hai Pier.

Recommended Duration

Recommended stay: Day trip (4–8 hours) is very common and covers main beaches and snorkeling. For a more relaxed pace or to explore quieter hours and sunsets, stay 1–2 nights on the island or in Pattaya and take an early/late boat.

Clothing & Gear Tips

Swimwear, lightweight daytime clothing, a sun hat, reef-safe sunscreen, polarized sunglasses, water shoes or sandals for rocky snorkeling spots, a light rain jacket in the wet season, and a dry bag for valuables. If you plan to snorkel frequently, bring personal snorkel gear for comfort.

Local Food & Souvenirs

Fresh seafood (grilled prawns, fish, squid), Thai staples like papaya salad (som tam), and coconut-based desserts. Popular small souvenirs include seashell crafts, local woven items, and simple beachwear or trinkets from vendor stalls. Support local restaurants and small shops where possible.

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