Maya Bay
Visit one of the most beautiful beaches in Thailand and in the world. Several movies have been filmed at this gorgeous location, with "The Beach" movie starring Leonardo DiCaprio as the most famous. Maya Bay was closed for 4 years for the restoration of corals and wildlife, and since the reopening, you are not allowed to go into the sea anymore. Because of this, sometimes you will see baby sharks swimming in the ocean while walking on this paradise beach.
Pileh Lagoon
This lagoon is the perfect spot to cool down and take a swim in the turquoise waters while admiring the cove-like canyon that cuts into the Phi Phi Leh island.
Snorkel Experience
Phi Phi is one of the most beautiful places in the world to snorkel. Colorful fish and gorgeous corals are guaranteed to be seen at every snorkel spot. You might even see some harmless black-tip reef sharks if you are lucky. (They are not easy to spot and is not guaranteed on every tour)
Monkey Bay
At this bay, multiple beaches can be found where you will see crab-eating macaque monkeys in their natural habitat. They may look nice but they are aggressive. Please stay at a safe distance and don't touch them as they may bite and multiple rabies shots are needed at the hospital. (Even though monkeys are there 90% of the time, sightings are not guaranteed).
Viking Cave
This is one of the main attractions at Phi Phi Leh. Although it is not allowed to go inside the cave, all the boat trips stop here close enough to take pictures. There are many stories to be found about it, however, nobody knows what the exact history is.