Ko Yao Yai in Phang Nga Bay is the larger of the two big islands in the Ko Yao Archipelago. Its name simply means 'big long island', in contrast to its sister island Ko Yao Noi (Little long Island).
Two worlds meet here: On the one hand, you can still get to know the old Thialand here, Thailand that seemed untouched before tourism came. On the other hand, some of the best hotels in Thailand are represented on Yao Yai.
The island offers some beaches, discovery tours by bike or moped, and of course some infrastructure, albeit much more rudimentary than, for example, in Phuket.
Koh Yao Yai & Noi definitely belongs to the best islands near Phuket for boat trips.
Entry to this area is 300 THB / Adult, paid cash to the Park Rangers. Different rates apply for Thai nationals, foreigners, adults and kids.
Regular Season prices. All rates in Thai Baht, incl. VAT.
Last updated: August 2025
106 yachts available: 77 full-day, 29 overnight. Prices from 30,600 THB in Regular Season.
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Full-dayPrivate yacht charters to Koh Yao Yai & Noi start from 30,600 THB in Regular Season. Prices vary by yacht size, trip type, and season. All rates include VAT.
Our yachts to Koh Yao Yai & Noi accommodate up to 150 guests. We have 106 yachts available, from small speedboats to large catamarans.
We offer 77 full-day, 29 overnight trips to Koh Yao Yai & Noi. Full-day charters are the most popular, giving you plenty of time to explore.
The best time for yacht charters to Koh Yao Yai & Noi is during the high season (November to April) with calm seas and clear skies. Low season (May to October) offers lower prices but occasional rain.
Bring sunscreen (reef-safe preferred), swimwear, a towel, sunglasses, and a waterproof phone case. Snorkeling equipment is provided on most yachts. Bring cash for the National Park fee (300 THB per adult foreigner).
+66 (0) 80 524 9091 (english/german)
+66 (0) 92 27 18 0 92 (english/thai)
by DEEP BLUE CO., LTD.
Head Office
"Royal Phuket Marina"
Phuket 83000
Directions
(only by appointment)

Tourism Authority of Thailand
Register No 34/03030

by DEEP BLUE CO., LTD.
Head Office
"Royal Phuket Marina"
Phuket 83000
Directions
(only by appointment)

Tourism Authority of Thailand
Register No 34/03030

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