How to get to Koh Larn: boats from Bali Hai Pier

Koh Larn is an island, so how to get to Koh Larn always ends with a boat. Pattaya City reports that the islands of Koh Larn, Koh Krok and Koh Sak lie about 8 kilometers from the shore, and that the boat route from South Pattaya Port covers 7 kilometers.^6,1 If you add a temple or a viewpoint on the same day, the pier is the fixed point around which the rest of the schedule bends.

The island covers 4.07 km2, small enough that the pier you land at matters less than the beach you choose.⁷ After landing you move by minibus or motorbike taxi, which the Tourism Authority of Thailand lists as the services on the island.⁸ That is a short walk from any one pier to the sand, and it keeps the crossing the main thing to plan.

A visit can be a few hours or a night. This page covers the route in, from the city to the pier to the island, and leaves the beaches, the stay and the island's own transport to the pages that follow, so you can plan the crossing without wading through details you do not need yet. Read the route as a chain of legs, the road to Pattaya, the pier and the boat, and the rest of the plan falls into place around them.

The city report names the port: South Pattaya Port, better known as Bali Hai Pier, is where the Koh Larn boats load.¹ One listing gives the meeting point for its speedboat package as Bali Hai Pier near the clock tower, which is a useful landmark when you arrive in a taxi. Ask your hotel to write the pier name down in English and Thai if you are unsure, and keep the note for the ride back.

The city also lists service cooperatives that run the local transport, among them a Pattaya Boat Tourism cooperative with 121 members and a Koh Larn minibus cooperative with 33 members.¹⁰ Both the boats and the island minibuses are listed as organized services. Knowing that helps when you ask for help at the pier.

Allow time on arrival. The tour that spends 30 minutes at the pier for a safety briefing shows that boarding is not instant. A ticket booth, a queue and a walk along the jetty all take minutes, so plan to reach the pier well before the boat you want. Build in a buffer, and do not schedule anything tight after the boat.

Thai marine rules cover every passenger boat. Marine Department rules say each passenger wears a life jacket throughout the voyage, so ask for one if the crew does not offer it.⁵ Boat operators face drug and alcohol checks before and after each journey, while port officials inspect licences and passenger counts.²³ Children should wear a vest that fits. A lifejacket that fits properly matters more than one that merely hangs from the shoulders, so tighten the straps before the boat moves.

For trouble on the water, call 1111 to reach the Marine Department or 1155 for the Tourist Police, at any hour.²² Save both numbers on your phone before you board, together with the name of your operator, so you can reach someone fast. Give the same numbers to anyone travelling with you. Tell your hotel or your guide where you are going, so someone knows your plan.

Weather decides departures. Sea conditions can change a plan: one provider promises a reschedule or a full refund in extreme weather, and a second keeps a replacement program in Pattaya City for days when boats stay in port. Treat a cancellation as normal, not as a failure. Keep a flexible plan for the day, and book accommodation that lets you shift a night if the sea turns.

The last boat is the deadline that matters. The city report gives no timetable, so ask at the pier for the final departure and write it on your phone before you go ashore. A day of plenty and a missed boat can end in an expensive private crossing. Share the time with your group, so nobody wanders off.

Weather and light both shape the return. Leave the beach with a generous margin, keep your life jacket handy, and avoid planning a crossing that ends in the dark. Count heads at the pier, and keep your tickets and your cash somewhere safe. If you are travelling with children, plan the final crossing before they are tired and hungry.

If your plans include the temple or the viewpoint on the way home, check how far they sit from the pier, and book the meeting point for the next day before you head to dinner. A good crossing is an easy one, and a calm plan helps more than a clever one. Keep a note of the pier name on your phone. A calm plan helps more than a clever one.