Hotel Reviews Hotel Review : Santhiya Koh Yao Yai Resort and Spa, Thailand 8 May 20188 May 2018 April 2018, Location : Koh Yao Yai, Thailand I stayed at Santhiya Koh Yao Yai Resort and Spa for five days and four nights. It’s in Koh Yao Yai, PhangNga,…