Railey beach est accessible uniquement par bateau.

NO there is only 1 viewpoint

from a previous answer....get a longtail taxi boat from Ao Nang beach to West Railey for 100b each, walk through to East railey, then walk to south end of the beach and follow path behind Rayvadee resort to Pranang beach. 100 m along this path is a shelter with sign to the viewpoint, take plenty of water and sensible shoes as climb is steep, sweaty and scrambly, use of hands is required, and after rain it will be muddy. can also visit the lagoon, but requires a tricky descent. after the descending from the climb, continue along the path to pranang bach and take a dip in the sea to wash off the dirt and sweat.... if you dont want to walk all the way back to west railey, there are longtail boatmen on pranang to take you directly back to ao nang...

get a longtail taxi boat from Ao Nang beach to West Railey for 100b each, walk through to East railey, then walk to south end of the beach and follow path behind Rayvadee resort to Pranang beach. 100 m along this path is a shelter with sign to the viewpoint, take plenty of water and sensible shoes as climb is steep, sweaty and scrambly, use of hands is required, and after rain it will be muddy. can also visit the lagoon, but requires a tricky descent. after the descending from the climb, continue along the path to pranang bach and take a dip in the sea to wash off the dirt and sweat.... if you dont want to walk all the way back to west railey, there are longtail boatmen on pranang to take you directly back to ao nang...

Agree with above, boat trips can be crowded and rushed. The best place for me was Railay beach. I wish i could move there. Avoid elephant ride, the animals are abused and not looked after. View Point at Railey is worth seeing but the trip down the lagoon is not safe, there is no regard for health and safety in Thailand