Great — here are top boutique wellness retreats in Sri Lanka (focused on intimate, high-quality wellness/Ayurveda, eco-luxury and personalized programs). I’ve included what makes each special, where it’s located, who it’s best for and links/details you can use to book or check availability.

1. Santani Wellness Resort (Kandy hills)

• Why go: Purpose-built luxury wellness resort with fully personalized programs (detox, recovery, yoga, Ayurveda) and purpose-designed chalets set in tea-country. Strong emphasis on evidence-based, tailor-made wellness journeys. (santani.com)
• Location: Near Kandy (Aratenna/Werapitiya), central hill country.
• Best for: Multi-day detoxs, digital detox, yoga and medically supervised wellness programs.
• Typical stay: Minimums apply for some programs (e.g., 7 nights for certain recovery packages); book direct for program details and pre-arrival consultation. (santani.com)

2. Jetwing Vil Uyana (Sigiriya / Cultural Triangle)

• Why go: Eco-luxury “wetland” retreat of just 36 villas built around restored marshes and paddy — excellent for nature-based wellness, Ayurvedic spa, birdwatching, quiet and privacy. Strong eco credentials and immersive nature setting. (jetwinghotels.com)
• Location: Close to Sigiriya Rock (ideal combination of culture + nature).
• Best for: Eco-minded travelers who want wildlife, gentle wellness, Ayurveda and absolute serenity.

3. Barberyn Ayurveda Resorts (several small properties; e.g., Barberyn Sands, Waves)

• Why go: Long-established authentic Ayurveda clinics/resorts that offer physician-led Ayurvedic treatment plans (classical Panchakarma-style therapies) in small, intimate settings on the west/south coast. Good if you want traditional Ayurvedic medical programmes rather than spa-only treatments. (barberynresorts.com)
• Location: Multiple properties (Bentota / south-west coast and other coastal sites).
• Best for: Authentic Ayurvedic therapy courses, longer treatment stays and people seeking medically supervised Ayurveda.

4. Anantara Peace Haven Tangalle (Tangalle, south coast)

• Why go: Luxury boutique resort with an award-winning spa offering multi-day wellness programmes that combine Ayurveda, nutrition, life coaching and mindful practices (sleep, detox and “Inner Harmony” packages). More resort-style luxury with serious wellness programming. (Anantara.com)
• Location: Tangalle / southern coastline.
• Best for: Couples or solo travelers who want a luxury beach setting plus structured spa/Ayurveda programmes.

5. Uga Chena Huts (Yala / southeast)

• Why go: Small, design-forward retreat near Yala National Park — excellent for combining safari/wildlife with restorative spa treatments and private, secluded accommodation. Good spa menu and peaceful setting after game drives. (ugaescapes.com)
• Location: Near Yala National Park (south-east).
• Best for: Travelers combining wildlife safaris with relaxing spa treatments in an intimate lodge.

6. Jetwing Kaduruketha / Kalundewa Retreat (Dambulla / Cultural Triangle) — small eco-wellness options

• Why go: Kalundewa and similar small retreats focus on nature-immersion, farm-to-table meals, guided meditation and eco-therapy; good low-key wellness choice near the Cultural Triangle. (Smaller, lower-key than the large hotel spas.) (HIDMC.com)
• Location: Dambulla / central/north-central Sri Lanka.
• Best for: Nature, simplicity, guided forest/field meditation and mindful eating.

Quick planning tips

• Best months: South/west coast & southern resorts — November to April; Cultural Triangle/central highlands best in the drier months (December to March). East coast months differ (May–October for Arugam Bay/Trincomalee). Check the resort’s seasonal recommendations when booking. (thetimes.co.uk)
• Booking: For program availability (Ayurvedic physicians, minimum-stay medical packages, pre-arrival consultations) book directly with the resort websites or through a specialist wellness/tailor-made agent — many programs require advance medical intake and minimum stays. (santani.com)
• Prices: Boutique wellness retreats vary widely — expect anything from mid-range (authentic Ayurveda guesthouses) up to luxury (Santani, Anantara, Jetwing Vil Uyana). Many resorts publish package pricing on their sites or give quotes on enquiry.
• Health & visas: Confirm Sri Lanka entry/visa rules, travel insurance (covering medical/Ayurvedic procedures if relevant), and any health screening the resort requires.

If you’d like, I can:

• Narrow this to just Ayurvedic/medical clinics versus spa-focused retreats.
• Check specific availability and rates for particular dates (I can search current availability if you tell me travel dates).
• Send direct contact/booking pages for any of the properties above.

Which type of retreat do you prefer (Ayurveda clinical program, eco-wellness, luxury spa, or a wildlife + wellness combo)?