Hua Hin Transportation

The Bangkok drop off location is going to depend on what typre of transpo you are taking from Hua Hin? as well as the type of bus. Most buses are going to drop off at various hotel locations. You would want to be dropped off at a locations on Sukhumvit RD around soi 4 and Ploenchit. From there I would catch a taxi rather than a bus to the airport, much less run around and much faster and wont cost that much more.

As far as get from Hua Hin to Bangkok, a bus can take anywhere from 4-6 hours, again, depending on the type of bus you take. There are many mini vans that make the trip, just make sure that you know where you are going to get dropped off once you reach Bangkok. The mini vans are going to be a little more expensive and take about 3-4 hours, usually less depending on traffic, day of the week etc...
good luck

You need to bus to Bangkok, change bus stations and then bus to Rayong area for the boat to Koh Samet. I very much doubt you would find any boat to take you, if so would be extreamly expensive way to do it.
If you are not on a tight budget get a car+driver ( aka taxi car ) in Hua Hin, it should take about 6 hours including some rest stops, that cuts through south part of bangkok and then onto the fast highway towards Pattaya but by-passes Pattaya to the pier near to take the ferry boat to Samet.

This question was just posted a couple weeks ago. From what I remember, no one knew of a boat. Having said that, we're talking Thailand and with enough money you can get almost anything done. It would seem that this would be the simplest way but I don't know of anyone that does it. If that can not be done then yes, you would have to go back to Bnagkok and then on to Pattaya. I am unaware of any other way.
Good luck!

You can get to Hua Hin by train at BKK Hua Lumpong Station.It's a pleasent ride to Hua Hin but so very slow. It takes at least 5 hours.Once you arrive at the classic old Hua Hin Station there are taxis ,samlors or you can walk to the main street of the town.

Sarah is correct. I stand corrected as I was wrong. I was thinking about a place near Rayong, whcih was why I was wondering why you wanted to travel that far with so few days.
Sarah, there used to be a hovercraft years ago that transported people between Rayong, Pattaya and Bangkok, and I thought the Hua Hin area as well. Probably not used anymore, even when it was running I didn't think too many people used it. I think it was mnore of a hydra foil than a hovercraft.
Thanks
David

I am assuming that you are considering splitting up the four days between Cha Am and Hua Hin?
Probably staying in each place is the best as I don't think it really makes any difference as far as time is concerned. Time is really the issue here. Is there a reason why you want to or have to do both places? To get from one place to the next is going to take some time. Bus transport is probably the most reasonable. Consider 3-4 hours from Hua Hin to Bangkok, transfer and then another 2-3 hours to Cha Am. Basically a whole travel day. You may do it a little faster if you took private taxis or shuttle. You may consider water transport, probably faster "if" that is an option. Years ago there used to be a hovercraft out of Pattaya, into BKK and I think Hua Hin but that was a long time ago. You'd have to go on-line and find out if that is still an option but I have not heard of it lately. Have no idea on time.
If you don't have to do both places, do one and just relax and have fun at the one place. You may find yourself scrambling to get from A to B. If you had more days, it would make a difference. That would be my advice. Otherwise, bus or private taxi are your options.
Good luck!

Lomprayah operate direct services from Hua Hin to Koh Tao and Koh Phangan. Their express bus to Chumphon and the board the Lomprayah fast boat catamaran to Koh Tao, this continues to Koh Phangan and also to Koh Samui

Train to Hua Hin from Hualamphong station (Bangkok)- about $6 - take the local, it's far more interesting. Try to get to Hualamphong before noon - the local's a 4-hour trip, stopping in numerous small towns, with vendors getting on and off, with baskets of snacks, cold water, etc. The daring can smoke at the open doorway between cars - also an excellent picture spot (use a fast shutter speed).

Returning to Bangkok from Hua Hin, the Sunday north-bounds have reserved seats. Try to buy your reserved seat return tickets as soon as you arrive if you're there for the weekend. They DO sell fast. Since we couldn't get a seat on the train going back, we taxied to Bangkok.

Taxi home to BKK, about $45 for 3 people. There's a world of stuff to see and stop at on the highway going north. That could be a road-trip in itself.)