Koh Mook→Koh Lanta

The shared speedboat from Koh Kradan to Koh Lanta takes about 1 hour 5 minutes to 1 hour 15 minutes. Both Bundhaya Company and Satun Pakbara Speed Boat Club run the route from Koh Kradan Beach to Saladan Pier on north Koh Lanta — typical schedules are 10:45–12:00, 10:50–12:00, and 13:50–15:00. The crossing covers approximately 13 nautical miles. This route is seasonal and runs roughly mid-October through late April only.

The SmartEnPlus fare for the shared speedboat from Koh Kradan to Koh Lanta starts at THB 950 per adult with Bundhaya Company, the cheapest operator on this route. Satun Pakbara Speed Boat Club also runs the route at a similar price tier. All sailings are JOIN (shared speedboat, Standard class, 75 seats) — there is no separate private charter option on SmartEnPlus. The fare covers the foot-passenger ticket only; park entry fees for either island do not apply on this corridor.

The speedboat from Koh Kradan arrives at Saladan Pier (also called Bann Saladan Pier), the only ferry pier on Koh Lanta Yai, on the island's northern tip. From Saladan Pier you can reach most Koh Lanta resorts within 5–30 minutes by tuk-tuk, songthaew, or rented motorbike — the northern beach cluster (Klong Dao, Long Beach, Phra Ae, Klong Khong, Klong Nin) is closest. Departure on Koh Kradan is from the south end of the main beach in front of Kradan Beach Resort — there is no formal pier, so passengers wade a few steps to board the speedboat.

The only scheduled transport from Koh Mook to Koh Lanta is a shared speedboat. Both Bundhaya Company and Satun pakbara Speed Boat Club operate a 1-hour crossing from Koh Mook Pier on Koh Mook's east coast to Saladan Pier on the north tip of Koh Lanta Yai. Boats run daily during high season (mid-October to mid-May) at around 11:00, with both operators charging the same adult fare of THB 900. There is no hotel pickup — passengers walk to Koh Mook Pier and check in 30 minutes before departure. No SmartEnPlus service is available during the May–October monsoon low season.

The shared speedboat from Koh Mook Pier to Saladan Pier on Koh Lanta costs THB 900 per adult on both SmartEnPlus operators (Bundhaya Company and Satun pakbara Speed Boat Club) — identical pricing. Child fare (age 2–9) is THB 540, and infants travel free. The boats are 75-seat 4-engine Standard Speedboats with foot-passenger service only (no cars or motorbikes). Bookable via SmartEnPlus, 12Go Asia, DirectFerries, or phuketferry.com. Service operates only during high season (mid-October through mid-May); no SmartEnPlus inventory during monsoon months.

The shared speedboat from Koh Mook arrives at Saladan Pier (also called Bann Saladan Pier), the only ferry pier on Koh Lanta Yai, located on the island's northern tip. Both Bundhaya and Satun pakbara services use this pier — it's a proper concrete pier with walk-off arrival (no beach landing, no shallow-water wading). From Saladan Pier, tuk-tuks and songthaews connect to most Koh Lanta resorts in Klong Dao, Long Beach, Phra Ae, Klong Nin, and Kantiang Bay. The pier is the same gateway used for departures to Koh Phi Phi, Koh Ngai, Koh Kradan, Phuket, Ao Nang, Railay, and Krabi.