Khao Sam Roi Yot National Park
Khao Sam Roi Yot National Park is Thailand's first coastal national park, famous for dramatic limestone karst hills, coastal wetlands, extensive mangrove and freshwater marshes, quiet beaches and the iconic Phraya Nakhon Cave with its royal pavilion. The park offers wildlife watching (notably migratory birds), easy to moderate hikes, boat trips, kayaking and scenic drives in Prachuap Khiri Khan province.
Location
Khao Sam Roi Yot National Park (including Phraya Nakhon Cave, Laem Sala, Thung Sam Roi Yot marsh), Prachuap Khiri Khan, Thailand
Duration
Half-day to full-day (3–6 hours) for main sights; 1–2 days for birdwatching, photography or relaxed beach + trail exploration.
Best Time to Visit
November – February (cool, dry and best for wildlife and clear skies). Avoid heavy monsoon months (June–October) when trails and boat services may be disrupted.
Pricing
Approximate fees (subject to change):
- Park entrance: Thai nationals ~40 THB, foreigners ~200 THB.
- Long-tail boat to Phraya Nakhon Cave or Laem Sala Beach: ~200–400 THB per person round-trip depending on season and group size.
- Parking and small additional fees for trails/park services may apply. Bring cash; card acceptance is limited.
Activity Type
Coordinates
Highlights
Phraya Nakhon Cave with the famous royal pavilion and dramatic light beams
Laem Sala and other quiet beaches for swimming and photography
Thung Sam Roi Yot freshwater marsh — excellent for birdwatching (migratory waders, waterfowl)
Limestone karst hills and coastal panoramas visible from several viewpoints
Mangrove forests and coastal ecosystems — opportunities for guided nature walks
Boat trips, kayaking and easy to moderate hiking routes
Itinerary
Arrive at park, pay entrance fee and park vehicle. Take a short drive to the boat launch (if using boat) or start the Khao Daeng trail.
Arrive early to avoid heat and to secure boat seats. Bring cash for fees and boat fares.
Visit Phraya Nakhon Cave: short boat (if available) + hike to the cave and royal pavilion.
The cave hike is moderate — expect steps and some steep sections. Morning light often creates dramatic shafts in the cave.
Lunch break and relax at Laem Sala or nearby beach.
There are simple local food stalls; bring snacks and water if you want more options.
Explore Thung Sam Roi Yot freshwater marsh for birdwatching or take a mangrove walk/kayak trip.
Late afternoon is good for bird activity and soft light for photography.
Return to park entrance; optional sunset viewing at an accessible viewpoint or head to local town for dinner.
Check boat return times and park closing time to avoid being stranded.
Safety Requirements
Bring plenty of water, sun protection (hat, sunscreen) and insect repellent.
Wear sturdy, closed shoes for cave and trail hikes; some sections are steep and slippery.
Be cautious of tides and boat schedules when using water transport; always wear life jackets when required.
Monitor weather — trails and boat services may be closed in heavy rain or high seas.
Respect wildlife and keep distance; do not feed animals or disturb bird colonies.
Carry a basic first-aid kit and inform someone of your plans if heading to remote trails.
Tips
Go early morning to see the cave illuminated by sunlight and to avoid heat and crowds.
Bring cash: many local services (boats, food stalls, park fees) accept only cash.
Hire a local guide for birdwatching or to learn about the park's ecology and history.
Wear lightweight, quick-dry clothing and good walking shoes; some paths are rocky.
Check boat schedules in advance — some routes operate only at certain tide windows.
If you plan to camp or stay overnight, reserve accommodation ahead in peak season (Nov–Feb).
Respect park rules: take rubbish with you, and avoid stepping on sensitive marsh or mangrove areas.
