Just a short speedboat ride from Phuket’s east coast, the Koh Khai islands — Koh Khai Nai (Yai) and Koh Khai Nok (Noi) — are tiny tropical getaways with soft sands, clear waters, and shallow reefs teeming with fish. They’re often included in half-day or full-day island-hopping tours, making them a convenient escape for families, first-time snorkelers, and anyone short on time.