Racha Yai, Maithon, Khai (8 hrs)
Last week, a guest asked me which island has the clearest water around Phuket – I just smiled and pointed south toward the Khai Islands. The water there is so clear you'll think your polarized sunglasses are playing tricks on you.
The Jeab makes this southern circuit pretty spectacular – her 42-foot frame cuts through these waters like she owns the place. Starting with Racha Yai's pristine beaches, then cruising to Maithon's protected bays, this Luxury Speedboat 42ft gives you serious island-hopping range in just eight hours.
Racha Yai works brilliantly for snorkeling – the coral gardens on the east side stay protected even when the Andaman gets moody. Maithon keeps things super chill with its calm lagoons, perfect for that afternoon swim without fighting currents. The hardest choice comes at the Khai trio – Nai, Nok, or Nui first (spoiler: they're all ridiculously photogenic).
November through February delivers those postcard-perfect days, though monsoon season brings its own authentic Thai charm with brief warm showers that actually feel refreshing. Pack your phone in something waterproof – these tropical downpours make for bumpy rides but incredible photos afterward.
Twenty passengers fit comfortably aboard Jeab, making this route ideal for larger groups wanting to see why Phuket's southern waters get all the attention. Because Thailand's island treasures deserve to be seen from the sea.