Planning Railay Beach and Four Islands in one trip: timing, ticketing and hidden complications

First, understand Railay's one rule: boat only

Railay has no road at all. The only way in is by longtail boat - from the south end of Ao Nang beach (10-15 minutes, ฿100 one-way, ฿200 return, boats run 8 AM-6 PM and leave once about 8 passengers board), or from Ao Nam Mao pier near Krabi Town (~15 minutes, ฿100, minimum ~6 passengers). Buy a paper ticket at the Ao Nang Boat Club kiosks - one at the beach-road corner, one on the beachfront - not from the boat drivers. After dark the fare rises and boats thin out; miss the 6 PM last boat and you are negotiating a private charter. There is no app, no timetable, no online booking: this crossing is arranged in person, in cash, at the kiosk.

The overlap nobody warns you about

The standard Four Islands itinerary - Koh Poda, Chicken Island, Koh Tup's sandbar - ends at Phra Nang Cave Beach, which is Railay's southern beach. If you also plan a separate Railay day, you will stand on the same sand twice. Two clean ways to split it:

• Split the peninsula: take the Four Islands tour from Ao Nang (which covers Phra Nang), then do your independent Railay day for Railay West's sunset, the lagoon viewpoint hike and the climbing walls - skipping Phra Nang, since the tour already gave it to you.
• Or stay on Railay: sleep on the peninsula, do your beach days there, and book a private longtail from Railay itself to the Four Islands - private boats can collect you from Railay West; shared group tours generally cannot (their pickups are Ao Nang, Krabi Town, Klong Muang and Tubkaek hotels, reached by road).

Ticketing and fees, both halves

• Railay leg: ฿100 one-way at the kiosk; no park fee for the beaches themselves. The walking paths between Railay West, Railay East (mangroves, not for swimming) and Phra Nang are free and flat enough for flip-flops.
• Four Islands leg: group tours run ฿900-1,200 per person including hotel pickup, lunch and snorkel gear (June 2026 operator figures), plus the national park fee - quoted ฿200-400 per foreign adult depending on operator - paid separately, in cash, at the pier or on arrival. Ask the operator to time Koh Tup's sandbar stop to low tide; it only exists for an hour or two around low water.

A two-day plan that works

Day 1 - Four Islands tour. Pickup 7:30-9:00 AM from your Ao Nang hotel, boat from Nopparat Thara pier around 9:00-9:30, islands through the day, Phra Nang mid-afternoon, back by 3:00-4:00 PM. Day 2 - Railay independently. Walk to the Ao Nang beach kiosk after breakfast, longtail over (10-15 minutes), day on Railay West and the East-side paths, sunset on the west beach, and - the whole point - be at the Railay floating pier by 5:30 PM, giving the last 6 PM boat a margin. Staying on Railay overnight removes this deadline entirely, at the cost of road access to everything else.

The hidden complications, listed

• Tour vans cannot reach Railay. A hotel address on Railay breaks every shared-tour pickup; the system assumes a road. Either base in Ao Nang for tour days or use private boats from Railay.
• Leave-when-full cuts both ways. Mid-morning boats fill fast; the 5-6 PM return rush to Ao Nang can mean a queue of tired people at the Railay pier. Go a little early.
• Wading boardings. Both the Railay hop and Four Islands landings are wet beach boardings - wear sandals you can soak, and keep phones in a dry bag.
• Monsoon changes everything. November-March is the calm window; May-October swell can cancel Four Islands tours and make even the short Railay crossing bouncy.
• Luggage on Railay stays: bags get carried through ankle-deep water onto the boat - pack a day bag on top.

Sources

Fares and timings checked 30 October 2026 against: Thailand Longtail's Ao Nang-Railay guide (2026 - ฿100 one-way, 8 AM-6 PM, ~8 passengers to depart); Thailand Tested's Railay page (fares verified with the boat cooperative, 18 September 2026); Out Thailand's Railay guide (7 July 2026 - Ao Nam Mao alternative, ฿100); Visit-Thailand.org (1 October 2026 - after-dark premium, Railay East not for swimming); Practical Thailand (12 August 2026 - no app, in-person ticketing) and Couples Travel Stories (January 2026 - Boat Club kiosk locations). Four Islands prices and park-fee practice from Krabi Boat Tours (12 June 2026) and operator itineraries. Fares are posted on boards at the kiosks - photograph the board on arrival.