Koh Ngai
Ko Ngai · Ko Hai · Hai Island
7°24.8'N 99°10.4'E
Depth
4–15m
Bottom
sand
Alarm Radius
70m
Holding
Fair
Recommended Anchor Alarm Radius
70m
Set 70m radius off the northern anchorage. Sandy patches between coral heads — snorkel to verify anchor placement. Best anchorage is on the north and northeast side of the island.
About This Anchorage
Koh Ngai (Hai Island) is a small, unspoiled island southwest of Koh Lanta with crystal-clear water, powdery white beaches, and excellent snorkeling. Several small beach resorts operate on the island but no major development. The anchorage on the northern and eastern sides offers fair-to-good holding in sand between coral. One of the most beautiful overnight anchorages in the Krabi–Trang region. A mandatory stop on the southern route to Koh Mook and Koh Kradan.
Protected From
N · NE · E
Exposed To
SW · W · S
Anchoring Rules
- Anchoring fee
- Free
- Permit required
- No
Restrictions: Do not anchor on coral reefs. Snorkel to verify sandy bottom before setting anchor.
Hazards
- !Coral patches throughout — snorkel before anchoring
- !Exposed to W/SW swell in SW monsoon — use NE season only
- !Reef at southern tip of island extends further than chart suggests
Skipper's Tips
- →Anchor in sand in the north-facing cove for best shelter and holding
- →Snorkeling off the northern beach is outstanding — bring your own gear
- →The beach resorts may have water taxi services — confirm before landing dinghy
- →Sunrise from the anchorage is spectacular
Facilities
Small beach resort restaurants on the northern beach
Nearest provisions: Koh Lanta (Ban Sala Dan) (18nm)
Best Months & Season
November, December, January, February, March, April
NE monsoon season (November–April) only. February–March provides the calmest conditions with flat seas and excellent visibility.
Recommended Anchor Types
Nearby Anchorages
Set Your Anchor Alarm to 70m
Around the Phi Phi Islands and Krabi coast, swell can enter bays unexpectedly and the large Andaman tidal range means your position changes constantly. Safety Anchor Alarm monitors your GPS position continuously so you can enjoy the rock climbing, snorkeling, and sunsets with complete confidence.
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