The popularity of Koh Tap and KohMor is due to their specific shape, as both sides of the sand bar offer great snorkelling in crystal clear waters.
This sandbar is called ‘talaywaek’ in Thai, which means ‘divided sea’. A short hike to Koh Tap’s summit offers a cool viewpoint to the other islands around.
The best way to get to these islands is to join the Krabi Four-Island tour by speedboat (or any similar excursion).
Alternatively, if you just want to go there to spend the day, you could pack a lunch, and simply take a long-tail boat from Ao Nang, Railay, KlongMuang or NopparatThara.
It will cost you about 300 baht per person to get there from Ao Nang. Note that you will have to wait for the boat to have at least eight passengers before setting off.