Koh Bon Pinnacle - Similan Islands

Koh Bon Pinnacle, sometimes called 'Fishermen's Nightmare', sits a few hundred meters northwest of Koh Bon island. The top of the pinnacle starts around 18m, making it a spot we'd suggest for experienced divers comfortable with a negative buoyancy entry, as currents can be quite strong here. On the colorful coral-dusted peaks, you're in with a good chance of spotting Napoleon wrasse and hunting trevallies darting about. Mantas cruise through the blue water, and if you peek into the deeper crevices, you might even find a sleeping leopard shark.

Location
Similan Islands, Thailand, Southeast Asia
Coordinates
7.805000, 97.855000
Type
pinnacle
Maximum Depth
18-40m

Best Time to Dive in Similan Islands

The warmest water temperatures in Similan Islands occur in May, averaging 30.8°C. The coolest conditions are in January at 28.6°C.

Monthly Water Temperatures

  • January: 28.6°C
  • February: 29.0°C
  • March: 29.6°C
  • April: 30.6°C
  • May: 30.8°C
  • June: 29.9°C
  • July: 29.6°C
  • August: 29.3°C
  • September: 29.0°C
  • October: 29.0°C
  • November: 29.2°C
  • December: 28.7°C

Nearby Dive Sites in Similan Islands

Nearest Dive Centres to Koh Bon Pinnacle

Marine Life in Similan Islands

Home to 183 recorded species including 127 reef fish, 38 hard corals, 9 seagrass & algae, 4 sharks & rays, 2 other, 1 octopus & squid.

Notable Species

Recommended Packing List for Koh Bon Pinnacle

Based on average water temperature of 29.4°C, currents 7 cm/s.

  • Shorty or Rashguard - warm 29°C water needs minimal exposure protection
  • Mask - essential for every dive
  • Fins
  • BCD - buoyancy compensator
  • Regulator - your most safety-critical piece of gear
  • Dive Computer - tracks depth, time, and NDL
  • Surface Marker Buoy (SMB) - essential for boat pickups
  • Dive Torch - useful for crevices and colour at depth
  • Underwater Camera - capture your diving memories

Frequently Asked Questions

What is the typical depth range for diving at Koh Bon Pinnacle?
The typical depth range for diving at Koh Bon Pinnacle is between 18 and 40 meters. The shallowest part of the pinnacle starts at 18m, offering a significant depth range for exploration.
What kind of marine life and underwater features can divers expect to see at Koh Bon Pinnacle?
Divers at Koh Bon Pinnacle can expect to see colourful coral covered peaks, which form the main underwater feature. Marine life sightings often include Napoleon wrasse, hunting trevallies, and majestic manta rays across the top of the pinnacles. In deeper areas, there's also a chance to spot sleeping marine life.
How challenging is diving at Koh Bon Pinnacle, and what level of experience is recommended?
Diving at Koh Bon Pinnacle is considered intermediate in difficulty and is recommended for experienced divers only. This is due to the strong currents often present and the requirement for divers to be capable of making a negative buoyancy entry.
When is the best time of year to dive Koh Bon Pinnacle for optimal conditions and marine life sightings?
The provided data does not specify the best time of year to dive Koh Bon Pinnacle for optimal conditions or marine life sightings. For general information on seasonal diving, you might consult our When to Dive guide.
What dive certifications are required or highly recommended for diving Koh Bon Pinnacle?
While specific certifications are not explicitly listed, Koh Bon Pinnacle is designated for experienced divers only. Given the strong currents and the need for a negative buoyancy entry, advanced certifications focusing on drift diving or deep diving would be highly recommended to ensure a safe and enjoyable experience.
What are the typical current conditions and visibility like at Koh Bon Pinnacle?
Koh Bon Pinnacle is known to be subject to strong currents, making it a site for experienced divers. The provided data does not specify typical visibility conditions for this dive site.