Thailand · Racha Islands

Racha Yai

Also known as: Koh Racha Yai, Raya Yai

Best time to dive

January to December; May to October

What you might see

  • BarracudaPossible
  • Manta rayPossible
  • Moray eelLikely

Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.

Certification & difficulty

Advanced Open Water - advanced conditions (currents/depth); dive within your training.

Snorkelling

Snorkel-friendly - Yes - excellent, shallow bays with hard coral gardens; one of Phuket's most popular snorkel day-trip destinations

Safety notes

Lionfish near artificial/rocky structures; shared shallow bays with snorkelers and boat traffic - watch for surface congestion

Permits & fees

Permits and operators change - confirm before booking.

Location

Nearest hub: Chalong, Phuket

This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.