Koh Lanta→Koh Kradan

The only SmartEnPlus-listed route from Phuket to Koh Bulone is by JOIN (shared) speedboat from Rassada Pier in Phuket Town, operated by Smart En Plus. The trip departs daily at 08:30 and arrives at Koh Bulone Resort around 12:30, taking approximately 4 hours. This is not a direct sailing — the speedboat makes one transfer stop at Saladan Pier (Koh Lanta) where passengers change boats and check in at the Satun Pakbara counter by 10:00 AM. Along the way, the boat also drops off/picks up at Tonsai Pier (Koh Phi Phi), Koh Ngai Resort Pier, Koh Mook Pier, and Koh Kradan Beach before the final stop at Koh Bulone Resort. Bookings run from October 16 through April 30 (high season); the route is not available during the May–October monsoon.

The JOIN speedboat from Koh Lanta (Saladan Pier) to Koh Kradan takes about 1 hour 5 min – 1 hour 10 min. All SmartEnPlus schedules run 70 minutes (10:30→11:40, 12:30→13:40, and 15:00→16:10). Bundhaya and Satun Pakbara operate the route with 75-seat Standard speedboats.

The one-way adult fare from Phuket to Koh Bulone is ฿2,650 with Smart En Plus — the only operator currently offering this route on SmartEnPlus. The fare covers the JOIN (shared) speedboat seat with the Saladan Pier transfer included. Children aged 3–9 receive a discount; infants under 3 travel free on a guardian's lap. The national park fee (฿200 adult / ฿200 child) is NOT included and is collected separately on arrival. Pregnant passengers are not permitted to travel. There is no published tiered cancellation policy — no-shows are charged the full booking price.

SmartEnPlus adult fares start from THB 900 (Satun Pakbara Speed Boat Club, the cheapest operator on this route). All four SmartEnPlus contracts are JOIN/shared speedboats — Bundhaya Company and Satun Pakbara Speed Boat Club both operate, with fares that cluster near the ฿900 floor. Bundhaya is slightly higher.

The speedboat from Phuket arrives at Koh Bulone Resort on the north end of Koh Bulone island in Satun Province. Koh Bulone has no formal pier infrastructure — passengers beach-land directly in front of the resort. This is the final stop on the Phuket → Koh Phi Phi → Koh Lanta (transfer) → Koh Ngai → Koh Mook → Koh Kradan → Koh Bulone island-hopping route, so arrival time can shift 30–60 minutes depending on the boat's pace through earlier stops. The island is small (about 2 km long) and is part of the southern Andaman / Tarutao National Marine Park area; the park fee is payable in cash at the beach landing.

The speedboat arrives at Koh Kradan Beach — a beach landing at the south end of the main beach (in front of Kradan Beach Resort). There is no formal pier; passengers wade a few steps from the anchored speedboat onto the sand. Departure is from Saladan Pier on Koh Lanta Yai's north coast.