My wife, daughter, and I are planning a trip to Thailand from mid-December 2026 through early January 2027. My family will focus on sightseeing—classic tourist spots, temples, beaches, markets, etc.—while I’ll stay on until the end of January to scout retirement locations.

This will be one of a couple of visits I’ll make over the next few years—I’m aiming to retire there in 2028 or 2029. We’d appreciate recommendations for:

Tourism highlights (family-friendly, must-see attractions during peak season)

Retirement spots that match these priorities:

• Affordable cost of living

• 2–3 bedroom house or villa near a beach, with a pool

• Walking or short-drive access to a marina for a 30–40 ft boat

Great diving and snorkelling

• Balanced community: roughly half locals, half expats

• Reliable daily fresh seafood

• Live-in maid service available

• Reasonable proximity to good hospitals (or a quick flight to one)

• Quiet and low-key even during high season—no heavy tourist crowds

Thanks in advance—any suggestions or itinerary ideas would be brilliant.