Racha Noi Guide: Diving, Getting There & Racha Yai Compared

Featured image: deeuutee, CC BY-SA 2.0, via Flickr.

Racha Noi at a Glance

Koh Racha Noi lies south of Koh Racha Yai, and Racha Yai itself sits about 20 km (roughly 12 miles) south of Phuket. Noi is the more exposed of the two. Operators list it for drift dives, rocky reefs and water that divers often rate as the clearest in the area. You do not simply turn up. Trip.com listings show "free admission, open 24/7", but in practice you book a boat, and operators usually exclude the national park entrance fee from the trip price. Ask your operator for the current fee.

• Access: day boat from Phuket, about 2 hours each way in one operator's itinerary
• Best for: certified divers, confident snorkelers, anyone who values clear water over beach facilities
• Main risk: high waves, which can stop boats entering and push the day tour to other islands
• Verdict: worth it for diving and snorkeling in calm seas, a poor pick for a beach day

Racha Noi vs Racha Yai: Which Should You Choose?

Pick Racha Yai if you want a beach, a meal ashore or a night on the island. Pick Racha Noi if the water itself is the point. Many day trips combine both. One operator's 3-dive day runs 2 dives at Noi and 1 at Yai. Our guide to diving around Koh Racha Yai covers the larger island in detail.

How to Get to Racha Noi

One operator's 3-dive day meets guests at Chalong Pier or collects them from hotels at 07:15. The boat leaves Chalong at 08:00 and takes about 2 hours to reach Racha Noi for the first dive. That timing leaves room for a breakfast buffet at 09:00, kit-up and a briefing. Treat the schedule as one example, since each operator sets its own times and pickup zones. Return to the pier is around 17:30 in the same itinerary. Sea crossings can be choppy, so people prone to seasickness should take medication before boarding, and a catamaran-style boat may ride more steadily. The crossing to Racha Yai is shorter, so a Yai-only trip saves real time.

Diving and Snorkeling at Racha Noi

Racha Noi Bay is the anchor example. It sits on the east side of the island, close to the dive site called South Tip. A white sand beach runs out to a small rocky islet at low tide. Divers typically drift around the outer side of the islet, with direction set by the current. Depth runs from 3 m to more than 30 m (about 100 ft), and visibility is listed at 20 to 40+ m. Difficulty is rated beginner to intermediate, with mild to strong current. When the current is strong, it pushes divers south and can carry them a long way. Stay with your guide and watch your computer. Manta rays are possible, but no operator can promise a sighting. Certified divers who want deeper options often take the Advanced Open Water course first. Beginners can dive the shallow areas, while snorkelers should ask whether their boat stops at Noi or only at Yai. For other options on the same coast, see Shark Point. Wreck fans can also look at the King Cruiser Wreck Phuket: Depth, Certification & How to Dive It.

What a Day Trip Costs and What Is Included

Prices and hours checked November 2026. Amity Diving Club lists a full-day, 3-dive Racha trip at ฿3,900 per person. Gear costs extra: a full equipment set is ฿500, and a dive computer is ฿300 per day. The price covers 3 open-sea dives, dive insurance, a professional guide, breakfast, lunch, snacks and soft drinks. Alcohol and the national park entrance fee are excluded. That trip is for certified divers only. Snorkel tours and speedboat trips usually cost less than a 3-dive day, but compare what each includes. Photos, park fees and gear rental are the usual add-ons.

Best Time to Go and When Trips Get Cancelled

Racha Noi is highly exposed to wind and waves. When waves are high, boats cannot enter, and day tours may switch to other islands. Before paying, ask your operator which fallback site they use and what the refund or rebooking terms are. Keep one spare day in your schedule. Racha Yai East offers shelter during the southwest monsoon, so operators sometimes shift there when Noi is rough. For exact monsoon timing, check the Thai Meteorological Department's marine forecast. If Noi is off the table, Anemone Reef Phuket: Dive Site Guide for Planning a Trip and Koh Doc Mai Diving Guide: Depth, Season & Who It Suits are other nearby dive options.

Who Should Skip Racha Noi

A few travelers will have a better day elsewhere. Run through this checklist before booking.

• Non-swimmers: choose a calmer snorkel stop or a Racha Yai beach day
• Seasickness-prone travelers: a 2-hour crossing each way is a long day
• Anyone wanting beach facilities: Noi is a boat-access dive island
• Short-stay visitors with fixed flights or schedules: weather cancellations are a real risk
• Divers without current experience: ask for a guided, shallow option

Where to Stay

Do not plan to sleep on Racha Noi. Racha Yai has bungalow resorts and restaurants in Ao Tawan Tok bay, so it is the island base for overnighters. Most Noi visitors stay on Phuket instead. Chalong is convenient for the 08:00 departure from Chalong Pier. Rawai is another common base, and hotel pickup is often offered.