Here are the top 10 best romantic getaways in Thailand, along with options and approximate cost ranges based on the high season:

- The Sarojin – a luxury resort located on the west coast of Thailand, known for its beautiful beachfront setting, excellent service, and high-end amenities. Approximate cost: starting at around $375 per night.
- The Dhara Dhevi Chiang Mai – a luxurious resort located in the north of Thailand, known for its beautiful setting, excellent service, and high-end amenities. Approximate cost: starting at around $500 per night.
- The Ritz-Carlton, Koh Samui – a luxurious resort located on the island of Koh Samui, known for its beautiful beachfront setting, excellent service, and high-end amenities. Approximate cost: starting at around $800 per night.
- The Four Seasons Resort Koh Samui – a luxurious resort located on the island of Koh Samui, known for its beautiful beachfront setting, excellent service, and high-end amenities. Approximate cost: starting at around $800 per night.
- The Anantara Golden Triangle Elephant Camp & Resort – a luxury resort located in the north of Thailand, known for its unique setting and activities, such as elephant treks and hill tribe village visits. Approximate cost: starting at around $450 per night.
- The Banyan Tree Phuket – a luxury resort located on the island of Phuket, known for its beautiful beachfront setting, excellent service, and high-end amenities. Approximate cost: starting at around $400 per night.
- The Mandarin Oriental, Phuket – a luxurious hotel located on the island of Phuket, known for its beautiful beachfront setting, excellent service, and high-end amenities. Approximate cost: starting at around $400 per night.
- The Evason Hua Hin – a luxury resort located on the Gulf of Thailand, known for its beautiful beachfront setting, excellent service, and high-end amenities. Approximate cost: starting at around $300 per night.
- The Aleenta Phuket-Phang Nga Resort & Spa – a luxury resort located on the west coast of Thailand, known for its beautiful beachfront setting, excellent service, and high-end amenities. Approximate cost: starting at around $300 per night.
- The Four Seasons Resort Chiang Mai – a luxurious resort located in the north of Thailand, known for its beautiful setting, excellent service, and high-end amenities. Approximate cost: starting at around $500 per night.
Please note that these prices are approximate and may vary depending on the season, room type, and availability. It is always a good idea to check the latest rates and availability directly with the hotel or resort.