Route shape
What still works?
Bangkok to Chiang Mai to Phuket, central-Thai loops, Andaman coast chains, and Gulf island stacks all have different weak points.
Route reality check
Use this before locking a trip shape. In Thailand, the wrong transfer stack can break the plan faster than the wrong attraction choice.
It does not try to replace booking engines. It tells you which route shape is strong, which leg is weak, what to verify before paying, and what your pivot should be.
Route shape
Bangkok to Chiang Mai to Phuket, central-Thai loops, Andaman coast chains, and Gulf island stacks all have different weak points.
Fragility
The weak leg, the main risk, and the refund logic stay explicit so the trip does not collapse under hidden transfer pain.
Pivot
Every route and ferry answer includes the pivot, because a good Thailand plan usually needs one honest fallback.
See the strongest route shapes and the most fragile boat-dependent moves together.
Default route preview: airport, pier, and fallback choices usually decide whether the route feels easy or punishing.
Use this to compare transfer risk before paying.