
Nudi Hole - Koh Phra Thong Local Thailand Dive Sites
Location: Middle-southern ocean side of Koh Pling Noi
Type: Scattered boulders and rock crevices
Depth: 5-12m
Life: Zebra lionfish, flatworm, sponge snail, porcupine pufferfish, nudibranch (hypselodoris + lots more)
Zebra Lionfish
Scientific name: Dendrochirus zebraSize: Up to 25cm
More: Body reddish with 5 dark bars, alternating with thin dark bars in large specimens. The top spines are venomous, causing reactions similar to a bee sting. Zebra lionfish flap their spiky fins to trap their prey. Gobbles up small fish, crabs and shrimp almost as big as itself.
Yellow-spotted Polyclad Flatworm
Scientific name: Acanthozoon sp.Size: Up to 10cm
More: Body generally dark on the upperside (black to brown) with lots of little bumps that are yellow or orange tipped. It has a pair of small ear-like pseudotentacles at the front. Seen on coral rubble, near living reefs. Moves rapidly over the substrate, chasing down prey. Can also swim by undulating the edges of their mantles.
Sponge Snail (Coriocella Hibyae)

Size: Up to 7cm
More: Extremely well camouflaged snail that looks like a sponge. It even has siphon holes like a sponge. Rare, only common in Maldives. Found on coral and rocky reefs amongst sand and rubble areas. Feed on compound ascidians (tunicates) . The shell is buried in the fleshy mantle wall.
Porcupine Pufferfish
Scientific name: Diodon holacanthusSize: Up to 90cm
More: Covered in sharp spines. Ability to inflate its body with air or water until it is almost completely spherical. Their internal organs contain a powerful poison called tetrodotoxin. Researchers are currently working on a powerful painkiller based on tetrodotoxin. Commonly seen in caves and holes in shallow reefs.
Nudibranch (Hypselodoris Bullockii)
Scientific name: Hypselodoris BullockiiSize: Up to 11cm
More: It ranges in colour from a pale straw, or even white background to a deep purplish pink. There is usually a thin opaque white line at the mantle border, but some specimens have a reddish purple border. Typically the gills and rhinophores are yellow or orange with a basal pink or purplish band.
PADI Dive Courses
Diving courses on Koh Phra Thong are conducted by the PADI Instructors from Blue Guru. A full range of PADI courses are offered up to Assistant Instructor. Also 18 different PADI specialty courses for refining skills and knowledge.
PADI 2 Day Specialties
Take your diving abilities to the next level with these more indepth 2 Day Specialties.
Deep Diver
Search & Recovery
Digital Underwater Videography
Night Diver
Mr. Chuoi Bar and Huts
Mr. Chuoi's bar and huts is an excellent budget accommodation option for the intrepid traveller. Situated close to a private bay, surrounded by nature, with freshly prepared food and an excellent little bar - everyone enjoys their stay with Mr. Chuoi.








