Reefwander
Dive boat approaching Mango Bay's granite coastline and clear turquoise water at Koh Tao

Koh Tao · Thailand · Artificial reef · Muck & macro

Junkyard

Sunken jeep and scrap at 10 to 12 m, colonised by reef fish

Area photo: ScorpioZZ · CC BY 3.0

A shallow artificial-reef site running from 10 to 12 m, built out of objects put on the bottom to make new habitat: a jeep and a toilet seat are among the pieces divers are shown. The junk concentrates fish in a small area, from ordinary angelfish and surgeonfish to boxfish and pufferfish, and the depth means an unhurried dive with plenty of gas in hand.

Where it is and how deep

Depth profile of Junkyard: typical dive 10–12 m (33–40 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit10 m12 mtypical dive
Depths on a shared scale to 40 m (130 ft); dashed lines mark common certification limits.

10.0869° N, 99.8221° EApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.

The dive

There is no natural structure to navigate by here, so the dive is a slow tour of the objects themselves. The site runs from 10 to 12 m across the bottom, which is shallow enough that gas rather than no-stop time sets the length of the dive, and the pieces are close enough together to work through methodically instead of swimming for distance. A jeep and a toilet seat are the two everybody remembers, but the point of them is what has grown on and moved into them.

Each object works as its own small reef, which is why the fish here are easier to watch than on open rock: they hold station on a piece of junk rather than moving off across the reef. Angelfish, bannerfish and surgeonfish are the everyday sightings, with boxfish and pufferfish among the rarer ones worth slowing down for. Everything on the bottom is now marine habitat, so the rule at this site is to look and photograph without handling any of it.

Marine life and season

The sources we used don't single out particular species here.

Month-by-month season rating for Junkyard
JanFebMarAprMayJunJulAugSepOctNovDec
GoodGoodPrimePrimePrimeGoodGoodGoodGoodFairFairGood

Season follows Koh Tao: No official closure; whale shark sightings peak March-May and September-October, while October-November bring more rain and surface chop.

Know before you go

  • Everything on the bottom is now living habitat and much of it is scrap metal: keep buoyancy off the objects and do not touch or move them.

Sources

  1. Junkyard - Scubago — Scubago

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