Kohyao Sun Smile Co., Ltd. was established in 2015 . Which operate speed boat service cover in Phuket, Phang Nga, and Krabi. They do service transfer from Phuket – Kohyao - Ao Nang beach - Railay beach and Phi Phi Island. The Kohyao Sun Smile is serving value customers with high-speed ferry, safety and service quality under the new way of tourism in Covid situation.

Kohyao Sun Smile is the first and the only one speed boat operation in Koh Yao Yai to Aonang, Railay and Phi Phi Island . The Kohyao Sun Smile has several types of speed boats. They are all have certified the safety of the sea from the marine department and also insurance that cover all valuable customers.
The crews are base on local people who are living in Koh Yao so they are full of experience in their duties.