Thailand.

A strong Thailand itinerary starts by choosing the right region for the trip type, then building the hotel, villa, dining, and transfer plan around that choice.

The first Bangkok decision is river versus Sukhumvit, and it is a dining-and-pace decision more than a hotel-ranking one. River hotels (Mandarin Oriental, Capella Bangkok) give a calmer, more visually distinct base with direct boat access to riverside dining, at the cost of a longer car ride to the Sukhumvit restaurant and nightlife corridor. Sukhumvit and Ploenchit hotels put the traveler inside Bangkok's densest Michelin and cocktail-bar cluster, trading the river view for a shorter reservation commute. Choose river for a calmer, culture-and-dining Bangkok stay; choose Sukhumvit for a dining-led, high-frequency-reservation stay.

Transfer planning is the actual failure point in most Thailand itineraries, not hotel selection. Andaman island transfers by speedboat are weather-dependent and can be delayed or rerouted with little notice during shoulder-season swells; helicopter transfer removes the weather risk but needs to be booked well ahead and confirmed against the receiving property's landing capability. Bangkok-to-island domestic flights compress at peak season and should be booked with a buffer connection, not a same-day arrival transfer to a boat. The itineraries that go wrong are the ones that treat the transfer as a formality booked last, not a planning input booked first.