Great choice — Sri Lanka has romantic options for every couple (beach, tea-country, safari, or colonial charm). Below are short, curated suggestions by vibe plus a few example properties and practical tips so you can pick what fits you best.

Beach escapes (sunsets, private dinners, whale watching)

• South & southwest coast (Mirissa, Weligama, Bentota, Unawatuna): warm beaches, whale-watching (Mirissa), and luxe oceanfront resorts. Example: Cape Weligama (clifftop villas, private terraces and couples’ packages). (resplendentceylon.com)
• East coast (Passikudah, Trincomalee, Arugam Bay) if you travel May–September for calmer seas there. (thetimes.co.uk)

Tea-country / hill-station romance (misty valleys, colonial bungalows, scenic trains)

• Stay in restored planter’s bungalows or hilltop villas for privacy, tea walks and fireplaces. Top picks: Ceylon Tea Trails (private planters’ bungalows) and 98 Acres Resort & Spa in Ella (tea-estate views, stylish chalets). Combine with the Kandy→Ella scenic train for a memorable journey. (resplendentceylon.com)

Colonial/heritage stays (Galle Fort, Kandy)

• Galle Fort has atmospheric boutique hotels inside the fort for cobbled-street strolls and sunset drinks. Examples: Amangalla and several boutique properties around the fort. Kandy also has intimate manor-house hotels (e.g., Kandy House) for a quiet, elegant stay. (en.wikipedia.org)

Wildlife & secluded-luxury (safari + private dinners)

• For couples who want both beach and safari, consider luxury safari lodges near Yala (beach + leopard safaris) — e.g., Wild Coast Tented Lodge (luxury tented “cocoons”, private plunge pools, guided game drives). (resplendentceylon.com)

How to choose / practical tips

• Best time depends on region: south/west coast is best Dec–Mar (also peak season); east coast is better May–Sep. Plan your route around the coast/monsoon patterns. (lonelyplanet.com)
• For a classic romantic loop: hill country (tea bungalow or Ella) → scenic train → Galle/Fort → south-coast beach resort (or Yala safari) — gives variety without long daily transfers. Train Kandy→Ella is one of Sri Lanka’s most scenic rail journeys. (lonelyplanet.com)
• Book popular boutique hotels and the scenic-train seats in advance during high season; many luxury properties offer honeymoon/romance packages (private dinners, couples’ spa). (resplendentceylon.com)

If you want, tell me:

• the vibe you prefer (beach, tea-country, safari, heritage), your travel month or length of trip, and budget range — I’ll draft 2–3 concrete itineraries and hotel picks with approximate costs and how to move between places.