Great — here's a practical guide to planning a rejuvenation holiday in Sri Lanka, with options, where to go, a sample 7‑day itinerary, price guidance and practical tips.

Overview — types of rejuvenation holidays

• Ayurveda retreats: personalized Ayurvedic consultations, Panchakarma (detox/programmes), daily oil therapies, medicinal diets and rest. Ideal if you want a medically framed detox and longer-term lifestyle advice.
• Yoga & mindfulness retreats: daily asana, pranayama, meditation, sound healing and simple vegetarian meals.
• Luxury spa escapes: short stays focused on spa treatments, hydrotherapy, thermal suites and relaxation without strict detox regimens.
• Nature detox / digital‑detox eco‑retreats: hill/tea‑estate or rural stays with minimal tech, nature walks and simple food.

Where to go (best regions)

• South & South Coast (Ahangama, Weligama, Mirissa, Galle): many yoga and wellness retreats, beachside relaxation and surf + spa combos. Good for Nov–Apr. (soulhousesrilanka.com)
• Hill Country (Kandy, Nuwara Eliya, Hatton): cooler climate, tea‑estate retreats and Ayurvedic centres — excellent for quiet, restorative stays (e.g., Santani near Kandy). (wallpaper.com)
• East Coast (Trincomalee, Nilaveli, Arugam Bay): quieter beaches and seasonal retreats; best May–September for east coast weather.
• Cultural Triangle (Dambulla/Polonnaruwa/Sigiriya): combine gentle sightseeing with Ayurveda or yoga programs.

Notable examples (to research/book)

• Santani (hill country) — highly regarded wellness/Ayurveda retreat with new villas and wide wellness programming. Good for a deeper wellness focus. (wallpaper.com)
• Small boutique Ayurveda centres, Ulpotha (rural yoga/Ayurveda eco‑retreat), and beach yoga/wellness houses on south coast — many options from simple to luxury. (Search “Ayurveda retreats Sri Lanka” or “wellness retreats Sri Lanka 2025” to compare current availability and reviews). (wellnesswarriorshealth.com)

Best time to visit

• December–March: generally best weather for the south and west coasts and hill country — ideal for combined beach + hill wellness.
• May–September: better for the east coast (Trincomalee, Arugam Bay).
  (Weather patterns are seasonal — check destination‑specific forecast before booking.)

Sample 7‑day “rejuvenation” itinerary (flexible) Day 1 — Arrival Colombo → transfer to south coast (or hill country) — gentle walk, early sleep.
Day 2 — Ayurvedic consultation & light therapies; restorative yoga; guided breathing.
Day 3 — Full day of scheduled treatments (oil massages, steam, specialist consult). Rest in the afternoon; meditation session.
Day 4 — Short nature walk / tea plantation visit (hill country) or gentle sea swim (coast); evening yoga.
Day 5 — Optional full‑day Panchakarma element or longer yoga workshop; mindful cooking class / herbal medicine talk.
Day 6 — Lighter treatments; free time; sunset beach or scenic viewpoint; restorative massage.
Day 7 — Final consultation, personalized aftercare plan; transfer to Colombo for departure.
Note: Many retreats tailor programmes from 3 nights to 21+; Ayurveda courses often run 7–14 days for measurable benefit.

Estimated budget (very approximate)

• Budget retreats/guesthouses with simple Ayurveda or yoga: USD 40–100 per night (shared/simpler facilities).
• Mid‑range wellness retreats: USD 120–300 per night (structured daily classes & some treatments).
• Luxury/resort wellness (private therapies, villas): USD 350–900+ per night.
  Costs depend on season, inclusions (food, consultations, number/type of treatments) and transfer costs.

Health, safety & practical tips

• Visa/ETA: As of Oct 2025 Sri Lanka requires an Electronic Travel Authorization (ETA) before departure for short tourist stays — rules and costs can change, so confirm and apply through official channels well before travel. (Check the latest ETA/visa rules for your nationality.) (en.wikipedia.org)
• Vaccinations: Routine vaccines up to date; hepatitis A and typhoid are commonly recommended for travel to Sri Lanka by many travel health clinics — check with your clinician.
• Ayurvedic caution: If you have chronic health conditions, are pregnant, or take regular medication, get medical clearance before intensive detox or Panchakarma. Reputable centres require a medical history/consultation.
• Booking: Book transfers and initial consultation in advance, especially for shorter stays where scheduling matters. Ask retreats for practitioner credentials (Ayurvedic physician/doctor).
• Money & tipping: Sri Lankan rupee is local currency; most hotels accept cards but bring some cash for tips, tuk‑tuks and rural areas. Tipping and small gratuities for therapists are customary in many places.
• Packing: light breathable clothes, modest clothing for temple visits, reef‑safe sunscreen, insect repellent, a travel first‑aid kit, and any prescription meds in original packaging.

How to choose a retreat

• Decide goal: clinical Ayurveda detox vs. gentle yoga & relaxation vs. luxury spa.
• Check practitioner qualifications (BAMS/Ayurvedic physician or certified therapists).
• Read recent guest reviews and enquire about daily schedule, sample menus, and private vs group treatments.
• Confirm cancellation/health policies (COVID or other travel disruptions remain possible).

Want me to do one of the following next?

• Find 3–6 currently available retreats (luxury, mid‑range, budget) for specific travel dates and compare prices/what’s included (I’ll check availability and prices).
• Build a customized 5–14 day itinerary (preferred focus: Ayurveda / yoga / spa + travel logistics).
• Provide up‑to‑date visa application link and step‑by‑step ETA guidance for U.S. citizens.

Which would you like me to do?