18 Best Luxury Beach Resorts in Southeast Asia for 2026

10. Conrad Koh Samui - Thailand's Hillside Luxury Retreat

Nestled on a secluded hillside on the southwestern tip of Koh Samui, Conrad Koh Samui offers guests an intimate luxury experience where contemporary design meets tropical elegance in a setting that provides both privacy and spectacular views of the Gulf of Thailand. The resort's 81 villas are strategically positioned to maximize ocean views and privacy, each featuring private infinity pools, outdoor living areas, and interiors that showcase modern Thai design elements through locally sourced materials and contemporary furnishings. The Ocean View Pool Villa Suites represent the pinnacle of luxury, offering expansive layouts, dedicated butler service, and panoramic views that encompass both the ocean and the resort's lush tropical gardens. The resort's commitment to wellness is evident in its comprehensive spa program, which combines traditional Thai healing practices with modern therapeutic techniques, delivered in hillside treatment pavilions that provide a serene environment for relaxation and rejuvenation. Culinary experiences showcase the diversity of Thai cuisine alongside international favorites, with Zest offering contemporary Asian fusion cuisine in an elegant hilltop setting, while Jahn provides casual beachfront dining featuring fresh seafood and traditional Thai specialties. The resort's recreational facilities include multiple swimming pools, a state-of-the-art fitness center, and a comprehensive water sports program that takes advantage of the resort's pristine beachfront location, while cultural activities include Thai cooking classes, traditional massage workshops, and excursions to nearby temples and local markets that provide authentic insights into Thai culture and traditions.