Worldisround A Dozen Days In Thailand Photograph Koh Phi Scenery in Thailand photograph; This is the Viking Cave on Koh Phi Phi Ley. There's a pier big enough for the Ao Princess to tie up along side. Then it's down the sides via ladders to the pier. To get to the Caves, you must negotiate a hanging gangway which you will see closer in another picture. Scenery in Thailand picture This is the Viking