The best option is the bus, ideal for those prioritizing convenience on a relatively long journey. The trade-off is the extended travel time.
The route from Satun to Railay involves a bus journey lasting approximately 360 minutes. If convenience is your priority, this option might suit you. Note that prices range from 450 to 900 THB, so it's advisable to check costs before booking.
The cheapest option is also the bus, with prices starting at 450 THB. However, be prepared for the long travel duration.
For families seeking comfort, the bus could be a suitable option despite the lengthy duration. It's wise to check travel conditions before booking.