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This 42-island archipelago sits in Surat Thani Province, just east of Koh Samui. You'll need to book an organized day tour by speedboat or big boat to reach the park, as no public ferries make the crossing.
Ko Wua Ta Lap, Surat Thani Province, Thailand
Most trips pick you up directly from your hotel and transfer you to a northern pier, usually Mae Nam. From there, the crossing covers roughly 28 to 30 kilometers.
These boats move fast and carry smaller groups, leaving more time to explore the islands. You'll have extra time to hike the steep 500-meter trail to the Wua Ta Lap viewpoint. But the ride gets rough quickly if the wind picks up outside the calm January-to-April season. Take seasickness medication if you're prone to motion sickness, and remember to bring cash for the 300 Baht park entrance fee.
Large boats depart from Nathon Pier on Samui's western coast. The 30-kilometer journey takes up to two hours, making it the slowest way across the Gulf of Thailand.
It's also the most stable. Families with young children or elderly travelers should book this option to avoid the harsh bouncing of a speedboat. You lose some park time to transit, but the crossing itself is comfortable and far less likely to trigger seasickness. Keep in mind that single-use plastics are banned in the park, so leave disposable water bottles behind before boarding.
Tours leaving from Koh Phangan cover about 35 kilometers to reach the archipelago. The transit time runs slightly longer than from Samui, taking up to 75 minutes depending on sea conditions.
Packages usually include snorkeling gear, a guide, and lunch. You'll likely spend part of the day snorkeling over shallow 10-meter-deep coral gardens around the northern islands. Be prepared to pay the 300 Baht national park entrance fee in cash once you arrive, as it's almost always excluded from the booking price. Bring reef-safe sunscreen without oxybenzone to protect the marine life.
Koh Tao sits 55 kilometers away, making this the longest standard day trip. Expect to spend at least an hour and a half on the boat in each direction.
Because of the distance, fewer operators run this route. You'll need to confirm schedules directly with dive shops or tour desks on the island, especially if you visit outside the peak dry season. If you book during October, expect frequent tour cancellations due to increased rainfall and rough seas. The park closes entirely from November 1 to mid-December anyway, so check exact reopening dates.
Renting a private speedboat from Koh Samui gives you control over the clock. You can time your departure to avoid the midday rush at the Wua Ta Lap viewpoint and the Thale Nai emerald lagoon.
Charters hold up to 40 passengers. If you split the 32,850 Baht base cost among a large group, the per-person rate drops close to a standard shared ticket. This is the best way to ensure you get a quiet walk up the stairs to the lagoon. Just don't bring a drone unless you secured written permission from the Department of National Parks first.
Ang Thong is an island archipelago accessible only by sea, so you won't need a car. Most day tours include hotel transfers directly to departure points like Koh Samui's Mae Nam or Nathon piers. Private charters pay boat parking fees at the park: 100 Baht for outboard engines and 300 Baht for big slow boats.
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| From | Mode | Time | Cost | Tip |
|---|---|---|---|---|
| Koh Samui (Mae Nam or Nathon Pier) | Speedboat tour | 45-60 minutes | 1,850 Baht adult / 1,500 Baht child | Keep 300 Baht in cash for the park entrance fee, which operators collect separately. Speedboats carry smaller groups and leave more time for the islands. |
| Koh Samui (Nathon Pier) | Big boat tour | 90-120 minutes | From 1,200 Baht adult / 800 Baht child | Book this slower vessel if you get seasick easily. The ride takes twice as long but stays much flatter on the water. |
| Koh Phangan | Speedboat tour | 45-75 minutes | $45-53 USD per person | These packages typically cover your lunch, snorkeling gear, and a park guide for the day. |
| Koh Tao | Speedboat tour | 90-120+ minutes | Varies by operator | Fewer operators run this 55-kilometer route. Call ahead to check schedules, particularly if you're traveling outside the January to April dry season. |
| Koh Samui | Private speedboat charter | 45-60 minutes | From 32,850 Baht per boat | A single boat holds up to 40 passengers. Use the flexible itinerary to time your Thale Nai lagoon visit before the group tours arrive. |
The 300 Baht foreign adult entrance fee is almost never included in your tour package. You pay this directly to park rangers in cash when you arrive. Bring exact change in small denominations since the islands have no ATMs.
Pick a big boat over a speedboat if you get seasick easily. The crossing from Koh Samui takes up to two hours this way, but it offers a far more stable ride than the 45-minute speedboat trip. Speedboats get choppy outside the January to April peak season.
Leave the flip-flops on the boat if you plan to hike. The trails to the Ko Wua Ta Lap viewpoint and Thale Nai lagoon are steep, rocky, and require pulling yourself up with ropes. Sneakers with solid grip will keep you from slipping.
Ang Thong completely shuts down every year from November 1 through mid-December due to rough monsoon weather. Do not attempt to book a trip during this window. Tours will simply cancel or reschedule until the seas calm down.
Flying a drone without prior written permission from the Department of National Parks is strictly prohibited. Rangers enforce this heavily. Violators face confiscation of their equipment and fines up to 100,000 Baht.
No public ferries run to the archipelago. You have to book a trip through a licensed tour operator or hire a private charter. Most visitors join organized day tours departing from Koh Samui, Koh Phangan, or Koh Tao.
Tours usually depart from either Mae Nam Pier on the northern coast or Nathon Pier on the western side of the island. Speedboats leave from both locations, while the slower big boats operate out of Nathon. Your tour operator will typically pick you up directly from your hotel and drive you to the correct dock.
Speedboats from Koh Samui or Koh Phangan cover the 28 to 35 kilometers in 45 to 75 minutes. Big boats take a slower pace, requiring 90 to 120 minutes each way. Trips from Koh Tao are the longest, taking at least an hour and a half to cross the 55-kilometer distance.
Book a speedboat if you want to spend less time in transit and more time at the park. Families with young children, older travelers, or anyone prone to seasickness should choose the big boat. The larger vessels take up to two hours to cross from Koh Samui but handle rough water much better.
A standard big boat tour from Koh Samui costs around 1,200 Baht per adult, while VIP speedboat packages run closer to 1,850 Baht. Private speedboat charters for up to 40 people start at 32,850 Baht. You also need to pay the 300 Baht national park entrance fee separately in cash to the rangers.
Boat operators shut down entirely from November 1 through mid-December when the park closes for the monsoon season. Exact reopening dates depend on the weather, usually falling between December 10 and 20. October trips frequently face cancellations due to rough sea conditions and heavy rain.
You can arrange to stay overnight in a park bungalow or rented tent on Ko Wua Ta Lap. You'll need to book your accommodation through the Department of National Parks and coordinate with your tour operator to pick you up on a different day. The two-person bungalows cost 600 Baht per night, while camping is 80 Baht per person.
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