Krabi Islands and Railay Guide: Tours, Beaches and Tips

Krabi's best-known scenery is on the water: pale beaches walled by limestone, small islands with snorkelling reefs, and the Railay peninsula with its caves and viewpoints. Most of it is reached by longtail boat or speedboat from Ao Nang or Krabi Town. This guide explains what each place offers, how tours differ, and how to pick the right one for the weather and your group.

The main options at a glance

Operators vary their routes depending on tides, sea state and park rules. Treat any named island as "usually included" rather than guaranteed and check the written itinerary.

Railay and Phra Nang

Railay is a peninsula, not an island. Its four main beaches, Railay West, Railay East, Phra Nang and Ton Sai, are connected by short walking paths, and cliff faces separate them from the mainland.

• Railay West: Wide, sandy and good for sunset swims.
• Railay East: Mangrove-edged and often muddy at low tide; mainly a place to stay and eat.
• Phra Nang Beach: Small, scenic beach with a cave shrine; crowded in the middle of the day, calmer early and late.
• Ton Sai: Backpacker and climber scene, a short walk or boat ride from Railay West.

The viewpoint trail from Railay East is steep, rocky and slippery when wet. Wear shoes with grip, carry water, and skip it in heavy rain. The lagoon trail is more demanding. Conditions are variable, so follow local signs and use common sense.

Rock climbing schools in Railay offer beginner courses. Ask about equipment inspection, instructor experience and what insurance covers before booking.

How to reach Railay

Longtail boats leave from the Ao Nang beach pier or from Krabi Town's river piers (Chao Fa). Fares are typically set per person or per boat; check the posted price and where the pier is before paying. Railay West boats land directly on the beach in calm weather; in other conditions or at low tide you may disembark at Railay East or wade a short distance. Boats usually stop running late in the evening, so confirm last departure times if you stay or return by boat.

The Four Islands tour

The Four Islands trip typically visits Koh Poda, Chicken Island (named for a rock shaped like a chicken's head), Tup Island with its sandbar that appears at low tide, and the Phra Nang area. The sandbar's accessibility depends on tide, so ask the operator about the day's timing.

• Groups may be large on longtail boats or smaller on speedboats.
• Lunch is often basic and included, sometimes on Koh Poda.
• The national park fee is sometimes included and sometimes not; confirm.

Hong Islands and Phang Nga Bay area

The Hong Islands, sometimes called the Hong Islands group, are made of limestone karst surrounding a lagoon. Day trips from Krabi commonly include kayaking or paddle boarding in the lagoon, swimming and snorkelling. Hong sits in a protected marine area, with fees and rules set by the national park. In the rainy season, access is often limited by waves.

Koh Poda and Tup Island

Koh Poda is a larger island with a long, shallow beach and good snorkelling around it. Tup Island and the connecting sandbar are popular for photographs. Both are busiest between late morning and mid-afternoon; an early-start tour or a late-afternoon trip can be quieter.

Choosing a tour: a decision guide

1. Cheapest and flexible: Shared longtail with a fixed itinerary.
2. Fewer crowds and more spots: A speedboat or a small-group boat.
3. Family with small children: Choose a boat with life jackets in children's sizes and a shaded deck.
4. Snorkelling focus: Ask which reefs, depth and whether masks and fins are provided.
5. Seasickness-prone: Dry-season mornings, longer boats, or Railay only.

Questions to ask before you pay

• Which islands are visited, and in what order?
• Are national park fees, lunch, water and snorkel gear included?
• Are life jackets provided, and are they a suitable size?
• What is the cancellation or weather policy?
• What time does the boat return, and where do I get dropped off?

Seasons and conditions

The dry season, roughly mid-November to April, is the best time for boat trips: calm seas, clear water and long sunshine. From May to October the southwest monsoon brings rain and waves.

• Many operators cut or stop services on rough days, and national parks may close marine areas.
• Swimming at west-facing beaches can be unsafe due to strong currents and shore break.
• Visibility is often lower in the rainy season, and jellyfish may be more common.

If you travel outside the dry season, build in a spare day for any must-do trip. Check the Thai Meteorological Department's marine forecasts for wave heights, and ask your operator how they decide to cancel. For a country-wide view see Thailand best time by region.

Costs (approximate)

What to bring

• Reef-safe sunscreen, a hat and a rash guard
• Dry bag for phone and valuables
• Water shoes or sandals with grip
• Cash for park fees and snacks
• Motion-sickness tablets if needed
• A towel and a change of clothes

Take your rubbish back with you, avoid touching coral or marine life, and do not feed fish or monkeys.

Safety

Check that life jackets are provided and wear them on small boats in rough water. Follow beach flags, and avoid swimming alone. Travel insurance should cover boating and snorkelling. Emergency numbers are 191 police, 1669 medical and 1155 Tourist Police. For wider safety, scam and health information see Thailand safety, scams and health.

Putting it together: sample plans

Choose a base to match the plan: see Where to stay in Krabi and the Krabi hub. For a bigger island trip, see Koh Phi Phi.

FAQ

Prices, schedules and entry rules change. Figures here are approximate as of 2026; always confirm on the official or operator page before you book. Spotted something out of date? Tell us.