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Elephant Head

📍 Thailand

Lined Bristletooth (Ctenochaetus striatus) — recorded at Elephant Head

Elephant Head is a dive site in Thailand. It lies within the Mu Ko Similan National Park. The sea floor at the site position lies at about 53 meters. Currents typically run at 0.9 km/h and reach 1.5 km/h on the strongest days. Water temperatures range from 29°C in January to 31°C in May. The typical daily tidal range is about 1.6 m. Species recorded in the area include Lined Bristletooth, Indo-Pacific Sergeant Major, Map Puffer, Blue Dragon and Powder Blue Tang.

Dive Conditions

⬇️
Seabed Depth
53m
💨
Current
0.9 km/h (1.5)
🌡️
Water Temp
29–31 °C

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Typical Current 0.9 km/h (up to 1.5)
Seabed Depth 53 m
Water Temperature 29–31 °C
Tidal Range 1.6 m (typical daily)
GPS 8.6192°, 97.6428°

Data sources: currents and water temperature from Open-Meteo Marine (CC BY 4.0), hourly model values 2024; seabed depth from the GEBCO 2020 Grid, sampled at the site coordinates (grid resolution about 450 m). Tidal range is the median daily range of modelled sea level from Open-Meteo Marine, hourly values 2024. Protected area boundary from OpenStreetMap contributors (ODbL). Species observations from iNaturalist, checked against the World Register of Marine Species.

Conditions at Elephant Head through the year

Sea surface temperature at the site coordinates, averaged per month from hourly model values for 2024. The water is warmest in May at about 31 °C and coolest in January at about 29 °C, a spread of 2.2 degrees across the year.

Monthly sea surface temperature at Elephant Head (°C)
JanFebMarAprMayJunJulAugSepOctNovDec
28.9 29.1 29.8 30.7 31.1 29.9 29.4 29.4 28.9 29.4 29.6 29.0

Ocean current at the site runs at a typical 0.9 km/h. In the strongest tenth of the hours modelled for 2024 it reaches 1.5 km/h, which is when entries are normally timed to slack water at the turn of the tide.

The tide moves the water level by a median 1.6 m over a day, and by up to 2.2 m on the largest days of the month. That range drives how much water is exchanged over the reef and when the current turns.

In the open sea off Elephant Head, the highest wave of the day exceeded 1.5 m on 15.0 % of days between 2015 and 2024. The roughest month was August (46 % of days), the calmest March (0 %).

Share of days with waves above 1.5 m, open sea near Elephant Head (%, 2015–2024)
JanFebMarAprMayJunJulAugSepOctNovDec
110116294346291201

The seabed directly under the site coordinates sits at about 53 m. This is a bathymetry grid value with a cell size of roughly 450 m, so it describes the depth of the area rather than the deepest point a dive can reach.

Elephant Head lies inside Mu Ko Similan National Park. Protected areas can carry their own rules on entry fees, permits, anchoring and fishing; check the current rules with a local operator before you dive.

How Elephant Head compares

These comparisons use only the measured values above, set against the 376 dive sites published on findadive.com. A percentage shows the share of other sites with a lower (or higher) value, so it reads the same way wherever the site is.

Elephant Head compared with all listed sites and with Thailand
MeasureThis siteCompared with all sitesMedian in Thailand
Mean water temperature29.6 °Cwarmer than 64 % of the other 375 sites29.7 °C (126 sites)
Water temperature in the coolest month28.9 °Cwarmer than 87 % of the other 375 sites28.7 °C (126 sites)
Typical current0.9 km/hweaker than 62 % of the other 375 sites0.7 km/h (126 sites)
Current in the strongest 10 % of hours1.5 km/hweaker than 71 % of the other 375 sites1.3 km/h (126 sites)
Median daily tidal range1.6 mlarger than 65 % of the other 375 sites1.6 m (126 sites)

Water temperature, current and tide from Open-Meteo Marine (CC BY 4.0), hourly model values for 2024 at 8.6192°, 97.6428°. Seabed depth from the GEBCO 2020 Grid. Protected area boundary from OpenStreetMap contributors (ODbL). Wave statistics from ERA5-Ocean via Open-Meteo Marine (contains modified Copernicus Climate Change Service information 2015–2024), daily maximum wave height on a 0.5° grid; land shelter tested against Natural Earth coastlines.

Marine life recorded at this site

Research-grade observations from iNaturalist within about 12 km of these coordinates.

Lined Bristletooth (Ctenochaetus striatus)
Lined Bristletooth Ctenochaetus striatus A brown surgeonfish with numerous fine blue lines along its body and a yellow tail, grazing algae with comb-like teeth.to 26 cm · 1-30 m · by daycoral-rich areas of reef flats, lagoons and seaward reefsLook for it singly or in small groups, often moving slowly over coral or rubble while picking at the surface. (c) Zac Peterson, some rights reserved (CC BY) · observation
Indo-Pacific Sergeant Major (Abudefduf vaigiensis)
Indo-Pacific Sergeant Major Abudefduf vaigiensis A pale-bodied damselfish with five dark vertical bars, often seen in large, active schools above the reef.to 20 cm · 1-12 m · by dayshallow reef flats, slopes, and piersLook for shimmering schools near the surface, especially around structures like buoys or jetty pilings. (c) Zac Peterson, some rights reserved (CC BY) · observation
Map Puffer (Arothron mappa)
Map Puffer Arothron mappa A large, robust pufferfish with a pattern of dark lines and spots on a pale background, resembling a map. It has a blunt face and small spines.to 65 cm · 3-30 m · day and nightouter reef slopes and lagoons, often near coral or rubbleOften seen hovering motionless. It may inflate if threatened, but this is stressful for the fish; observe from a distance. (c) nbasargin, some rights reserved (CC BY) · observation
Blue Dragon (Pteraeolidia semperi)
Blue Dragon Pteraeolidia semperi A slender nudibranch with long, branching cerata covering its back, giving it a feathery appearance. The cerata contain photosynthetic algae, which can give the animal a greenish hue.to 5 cm · 5-25 m · day and nightcoral rubble and reef slopesLook closely on hydroids and bryozoans, its food source; its cerata can retract when disturbed. (c) Tine Kinn Kvamme, some rights reserved (CC BY) · observation
Powder Blue Tang (Acanthurus leucosternon)
Powder Blue Tang Acanthurus leucosternon A bright blue surgeonfish with a black face, a white chest and a yellow dorsal fin. It has a sharp, retractable spine on each side of the tail base.to 23 cm · 1-25 m · by dayouter reef slopes and channels with strong currentOften seen singly or in small groups grazing on algae. Watch for the yellow dorsal fin when it is feeding. (c) luluchouette, some rights reserved (CC BY) · observation
Highfin Chub (Kyphosus cinerascens)
Highfin Chub Kyphosus cinerascens A silvery-grey schooling fish with a high dorsal fin and a slightly forked tail, often seen grazing on algae.to 75 cm · 1-30 m · by dayrocky reefs and areas with strong algal growthLook for large, slow-moving schools near the reef edge, often in areas with surge. (c) luluchouette, some rights reserved (CC BY) · observation
Striped Triplefin (Helcogramma striata)
Striped Triplefin Helcogramma striata A small, slender fish with three dorsal fins and a pattern of dark and light stripes along its body. It perches on rocks or coral, making short darts to feed.to 5 cm · 0-15 m · by dayrocky shores and shallow reef flatsLook for it resting motionless on small rocks or dead coral, often in surge zones. (c) luluchouette, some rights reserved (CC BY) · observation
Sea Mat (Palythoa tuberculosa)
Sea Mat Palythoa tuberculosa A colonial zoanthid forming extensive mats of small polyps on hard surfaces. Polyps are brown or grey with a pale oral disc.polyps to 1 cm diameter · 0-40 m · day and nighthard substrates on reefs and wallsLook for large, smooth mats on vertical rock faces; the polyps retract quickly if touched. (c) luluchouette, some rights reserved (CC BY) · observation