Koh Phi Phi Scuba Diving

Hin Dot

Hin Dot or "Chimney Rock" is located just outside of Tonsai Bay which is the main harbour in the Phi Phi Islands, to the south of Phi Phi Don. It is only visited by Koh Phi Phi diving boats and liveaboards and just a short boat ride is required to reach the site.

The site is comprised of 3 pinnacles or chimneys that lie close together in a north-south direction. The main pinnacle drops down as deep as 30m and has distinct shelves at 15m, 12m and 3m making it an excellent multi-level dive when currents allow. It also provides dramatic underwater scenery that changes as you slowly ascend.

There is an abundance of marine life here concentrated into a fairly small area. The pinnacles attract huge numbers of schooling fish including snapper, yellow fusiliers and jacks. Larger fish such as trevally and barracuda circle around feeding on the smaller fish. Their hunting antics are fascinating to watch.

The rock walls are covered in purple and orange-coloured soft corals along with tube corals, hard corals, Christmas tree and tube worms. The corals and crinoids are more vibrant in the shallower areas. Look closely in the cracks and crevices for all sorts of shrimps, crabs and small lobsters. There are numerous nudibranchs too.

Zigzag clams cover the lower areas of this Koh Phi Phi dive site along with a few giant clams and oysters. Leopard sharks can be found under the rocks at the bottom or resting on the sea bed.

As the entry and exit point to this dive is in the vicinity of Phi Phi's Tonsai Bay which has a lot of boat traffic, it is recommended to carry a safety balloon.

Hin Dot Reef Basics: Pinnacles and ledges
Depth: 5 - 28m
Visibility: 10 - 15m
Currents: Can be strong
Surface conditions: Can be choppy
Water temperature: 27 - 30°C
Experience level: Intermediate
Number of dive sites: 1
Diving season: All year round
Distance: ~45 km east of Phuket (3 hours), 30 km southwest of Krabi (2½ hours)
Access: Phi Phi scuba daytrips and liveaboards

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