Khao Laem Ya - Mu Ko Samet National Park is a significant marine national park in Rayong Province, covering coastal areas and islands in the Gulf of Thailand. Officially declared a national park in 1981, it encompasses over 80 square kilometers of land and sea, with the majority of the area being sea and rich coastal ecosystems. The park extends from Khao Laem Ya on the coast of Ban Phe to various islands such as Koh Samet, Koh Kudi, Koh Kruai, Koh Kham, and Koh Plai Teen, each with its own unique natural features, including white sandy beaches, coral reefs, clear waters, and well-preserved coastal forests. It is considered one of the most famous marine tourist destinations in the Eastern region and a popular destination for both Thai and international tourists seeking relaxation near Bangkok.

Khao Laem Ya is a key tourist attraction on the mainland side of the park. It's a headland jutting into the sea, offering panoramic ocean views. A highlight of this area is the coastal nature trail, a wooden walkway winding through rocks and the coastline, allowing visitors to enjoy nature, breathe in the sea air, and witness beautiful sunsets. The area surrounding Khao Laem Ya boasts endemic vegetation that thrives in the windy, saline coastal climate, such as seagrass, low shrubs, and casuarina trees, which have become a unique feature of the area's landscape. Additionally, there are popular beachfront campsites for nature lovers, especially during the cool winter months with clear skies, perfect for stargazing and relaxing to the sound of the waves.

Koh Samet is considered the heart of the national park and one of Thailand's most famous tourist islands. Its highlight is its fine white sand beaches, formed from the weathering of rocks and coral, resulting in soft, clean sand. The waters around the island are crystal-clear turquoise, ideal for swimming almost year-round due to the relatively calm sea. Popular beaches on the island include Sai Kaew Beach, Ao Wong Duean, Ao Prao, Ao Pai, and Ao Noi Na, each offering a different atmosphere. Some areas are lively, suitable for water activities and nightlife, while others are quiet and perfect for private relaxation. The island also offers various accommodations, restaurants, cafes, and tourist activities such as snorkeling, kayaking, jet skiing, and boat trips to nearby islands, making Koh Samet suitable for families, couples, and adventurous groups.

Besides Koh Samet, other islands within the national park also possess significant natural attractions. Koh Kudi is a popular snorkeling spot with shallow coral reefs and diverse marine life. The crystal-clear waters here are ideal for viewing staghorn coral, brain coral, and various small marine creatures. Koh Kruai and Koh Kham are small islands with tranquil beaches and relatively pristine natural environments. Tourists often visit these islands as day trips from Koh Samet for snorkeling and relaxing in the sea. The marine ecosystem of this national park is crucial for the conservation of natural resources in the upper Gulf of Thailand, including coral reefs, seagrass beds, and coastal marine life. This makes the national park an important role in regulating tourism and protecting natural resources from human activity.

Khao Laem Ya – Koh Samet National Park can be visited year-round, but the most popular time is between November and April, as the sea is beautiful, the water is clear, and there is less rainfall. Tourists can travel from Bangkok to Ban Phe, Rayong Province in approximately 3-4 hours, before taking a ferry to Koh Samet, which takes only about 30-45 minutes. The ease of access and diverse natural environment make this park a popular vacation destination for those seeking beautiful beaches near Bangkok. It also serves as an important area for coastal resource conservation in Thailand, maintaining its natural beauty remarkably well to this day.

• Private Car: Drive to Ban Phe, Mueang Rayong District, then proceed to the Khao Laem Ya National Park headquarters.

• Ferry: For travel to Koh Samet, take a passenger boat from Ban Phe Pier. Boats depart throughout the day.

• Public Transport: Buses or minivans from Bangkok (Ekkamai or Mo Chit) go directly to Ban Phe Pier.

• Visit between November and April for clearer seas and calmer weather.

• Arrive at Khao Laem Ya in the evening for the best sunset views.

• Bring sunscreen and a hat because the seaside sun can be intense.

• Sandals or hiking shoes are recommended for the coastal trail.

Admission Fees:

• Thai Nationals: Adults 40 THB, Children 20 THB

• Foreigners: Adults 200 THB, Children 100 THB

  (Prices are subject to change; please check with the National Park authority.)

Opening Hours:

• Open daily from 08:00 AM – 06:00 PM (for the Khao Laem Ya area).