www.phuketdiveguide.com · Dive Guide
Dive map and site guide covering arches, coral gardens, leopard sharks, blacktips, and wall depth.
Dive Spot Guide•
Koh Bida Nai
Popular Phi Phi limestone reef with coral gardens, sharks, and turtle sightings.
ScubaSnorkelBoat EntryIntermediate
Reef
Local operator required
This site is normally visited on guided boat dives, and operators often choose the exact route based on tide, current, and overall group suitability.
Koh Bida Nai mixes shallow coral gardens and sandy ledges with arches, walls, and outer reef lines, so one dive can feel calm and easy while the next is more current-driven.
About Koh Bida Nai
Koh Bida Nai is the inside Bida island south of Phi Phi Leh, with steep limestone walls, coral gardens, sand patches, and small cave-like features packed into one compact boat dive. The site can be easy and scenic on the shallower reef, but its outer edges are better known for sharks, turtles, schooling fish, and more current-sensitive routes.
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Research Estimate At Koh Bida Nai
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 15m
AccessModerate entry effort
Coral HealthHealthy coral
Marine LifeGreat variety
CrowdedFew visitors
Current StrengthModerate current
Where Is Koh Bida Nai?
This spotNearby spots
Community sourced coordinates.
Koh Bida Nai Planning Details
Depth range, seasonality, and planning context.
Reported Depth
3m - 30m
Depth Note
Shallow plateaus and reef tops can start around 3 m, while the sloping wall and outer reef commonly continue to about 25-30 m.
Best Season
Koh Bida Nai can be dived much of the year, with calmer boat conditions typically favored from November to April, while some June to October periods can bring very clear water and occasional larger pelagic sightings.
Typical Conditions
Expect limestone structure, coral gardens, sand patches, and variable tide-driven current, with visibility often good enough for blue-water fish watching on the outer edge.
Safety & Access At Koh Bida Nai
Hazards, restrictions, and access requirements.
Key Hazards
Overhead environmentStrong current
Safety Notes
The easiest reef sections are shallow, but current and depth increase around the outer wall and corners. Treat caves, arches, and swim-through features as optional terrain and follow the route your guide chooses for the tide.
Access Restrictions
Boat access only; Koh Bida Nai is dived from Phi Phi or longer-range day boats from Phuket and nearby mainland bases.
Local Intel For Koh Bida Nai
Community notes to help plan your visit.
Scuba
Koh Bida Nai works as an easy reef dive on calm days, but many divers remember it for shark patrols, stingrays on sand, and current-sensitive wall sections around the island's outer edge.
Snorkel
Shallow coral areas make Koh Bida Nai one of the more approachable snorkel stops around Phi Phi when sea state is calm, though the stronger wildlife action is usually deeper along the dive route.
Koh Bida Nai Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Koh Bida Nai.
Current Snapshot
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Sea State
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Visibility Outlook
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Exposure Profile at Koh Bida Nai
Directional shelter context for incoming swell.
Exposure Note
Hourly forecast data is not available yet.
Wildlife at Koh Bida Nai
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Koh Bida Nai
Community dive logs and visit reports for this site.
No Dive Logs Yet
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Dive Spot Log Averages At Koh Bida Nai
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility15m
Activity
No dive activity logged yet.
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Koh Bida Nai Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
Koh Bida Nai Guide - Sources and Updates
Last Updated
Research Sources
www.idcphuket.com · Operator
Operator notes on hard coral gardens, leopard sharks, stingrays, and beginner-to-advanced suitability.
www.infinitydiversphuket.com · Operator
Operator page describing gentle currents, snorkeling potential, and common marine life.
www.phuket101.net · Travel Guide
Updated Oct 18, 2024Independent guide with Phi Phi logistics, coral condition, caves, and larger-animal notes.
www.private-scuba.com · Travel Guide
Independent destination guide with year-round season context, visibility expectations, and snorkeling notes.
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