Nice — here are top wellness retreats along Sri Lanka’s south coast (Galle → Tangalle corridor), with what each is best known for so you can pick by vibe, budget and treatment style.

1. Amanwella (Tangalle) — luxury, private Ayurveda + beach yoga

• Why go: intimate, high-end resort with in-suite and beach spa treatments, private yoga, guided meditation with local monks and signature Ayurvedic massages (Abhyanga). Best for couples and solo travellers wanting quiet luxury and personalised wellness. (aman.com)

2. Anantara Peace Haven Tangalle — hotel spa with doctor-led Ayurveda programmes

• Why go: large resort spa offering multi-day Ayurveda programmes (doctor consultations), yoga pavilion, specialised packages for detox, sleep and weight-management. Good if you want resort comforts combined with structured wellness plans. (anantara.com)

3. Cape Weligama (Weligama) — clifftop luxury with a strong spa and yoga offering

• Why go: dramatic cliff-and-sea setting, Sanctuary Spa (tea- and spice‑inspired treatments), regular Hatha yoga and personalised fitness/wellness clinics — great for wellness plus scenic coastal views. (resplendentceylon.com)

4. Surya Lanka Ayurveda Beach Resort (Talalla) — authentic, doctor‑led Panchakarma

• Why go: longstanding, specialist Ayurveda resort offering full Panchakarma programmes, on-site Ayurvedic doctors, herbal diets and a quieter, traditional Ayurvedic experience (rooms often deliberately low-tech to encourage rest). Ideal if you want an intensive, clinical-style Ayurveda cure. (suryalanka.com)

5. Barberyn Beach Ayurveda Resort (Weligama) — family‑run, authentic Ayurvedic hospital-style programmes

• Why go: one of the island’s pioneers in Ayurveda tourism with doctor-prescribed treatments, synchronized massages and focussed detox programs — great for guests prioritising traditional Ayurvedic care over luxury trimmings. (barberynresorts.com)

6. Talalla Retreat / Talalla House (Talalla) — surf‑and‑yoga, modern wellness with spa & bathhouse

• Why go: beachfront yoga shalas, regular yoga/Pilates retreats, surf + restorative facilities (sauna, steam, cold plunge, magnesium pool, red‑light therapy) — perfect for active wellness (surf & yoga) and group retreats. (talallaretreat.com)

Quick travel tips

• Best season for south‑coast beach & wellness trips: generally November through April (drier seas and calm beaches). (hidmc.com)
• How long: 5–7 nights lets you complete short Ayurveda programmes or fully relax into a week-long yoga/surf retreat.
• Booking notes: for Ayurveda/Panchakarma you’ll usually have an initial doctor consultation and are often recommended to book several days in advance (programmes commonly run 5–14 days). Check each property’s package details and whether doctor/treatment availability requires advance booking. (suryalanka.com)

If you’d like, I can:

• narrow choices by budget (luxury vs mid-range vs authentic Ayurveda), or
• build a 7‑day wellness itinerary (which retreat to base in + side excursions like Galle Fort, whale‑watching or temple visits), or
• check current rates/availability for specific dates (I’ll look these up).