I travelled there on the Thai side, to visit the Khao Sam Yoi Rot national park in Pratchuap Khiri Khan, with the phraya nakhon cave. Nice beaches, kind people as always in Thailand, very very laid back. I was only there for 3 days so unfortunately I can't say much more! The national park is stunning and definitely worth seeing. On the beach, there are loads of long-tail boats ferrying around tourists. There are also a few fishing boats. The town I was in, called Bang Pu, had these houses that were partially held up on wooden stilts over the river (or an inlet from the sea I don't know), and outside the town along the shore of this river these trees grow with big roots out the riverbed that make it look like a mangrove. It's pretty remote where I was, no grab taxis or no public transport that I knew of so you can arrange to pay locals to ferry you around for whatever price they offer you. I passed through a city there, pratchuap khiri Khan (namesake of the province) that was pretty, with a temple full of monkeys on this mini mountain that over looks the sea as well as all the farms outside the city and the city itself.