Santhiya Koh Yao Yai Resort & Spa - Compulsory Join Santhiya Speedboat from-to Ao Po Grand Marina at Phuket

Santhiya Koh Yao Yai Resort & Spa sits on the largely undeveloped island of Koh Yao Yai in Phang Nga Bay, positioned between Phuket and Krabi in a stretch of water studded with limestone karsts. This is a five-star property rated 8.9 across more than 2,600 reviews, which places it firmly among the most consistently well-regarded island retreats in southern Thailand. The resort occupies its own private beachfront, with two swimming pools and direct access to the sea — a setting that draws guests specifically looking to step away from the density of Phuket's developed coastline without sacrificing comfort.

Getting here is part of the experience. The resort operates a compulsory speedboat transfer from Ao Po Grand Marina on Phuket's northeast coast, which means arrival is by water regardless of how guests reach Phuket itself. For those flying in, the airport shuttle removes the logistical friction of arranging independent transport across the island to the marina — a meaningful convenience when coordinating boat departure times after a long-haul flight. Rooms open for check-in from 3 p.m., giving travelers who arrive on morning flights time to reach the marina and cross the bay before settling in, while a checkout at 11:30 a.m. allows a leisurely final morning on the private beach before the speedboat returns.

The on-site spa and wellness center cater to guests whose primary reason for coming is rest and recovery, and the family room is a practical acknowledgment that Koh Yao Yai's calm, crowd-free environment makes it a credible choice for families who find Phuket's busier beaches too hectic. Breakfast is available in-room for those who prefer to start the day without leaving their accommodation.