When you arrive in Cha-Am, you will find taxis and moto-taxis who can take you to your hotel or to the beachfront. It's quite a long walk to the beach (2 kilometers), but if you're up to it, walk straight in the direction of the sign that says "Welcome to Cha-Am". You will pass the police station and post office on your left, then you will arrive at the main intersection of Cha-Am. Cross the road at the traffic lights and keep on walking straight to the beach.