Koh Bida Nai, Krabi in Thailand

Bidanai is one of the smaller islands located on the south side of Pipirei Island in Krabi Province, Thailand. This dive site offers a unique diving experience with depths ranging from 10 to 25 meters. The southern area features depths of around 10 to 15 meters, while the northern area, which is a wall, reaches depths of 25 meters. Divers can explore a fascinating swim-through near the southwest of the island, where they will have the opportunity to admire beautiful branch coral beds at a depth of approximately 8 meters. Additionally, divers can expect to encounter majestic tiger sharks in the southeast of the dive site, at depths ranging from 14 to 24 meters.

The jumping root is a popular spot for encountering tiger sharks. Divers may also witness the impressive sight of schools of yellow-tailed barracudas swimming around the jumping roots. In the eastern area of the island, schools of barracudas can also be observed. The swim-through area is often inhabited by vibrant moray eels that add a splash of color to the underwater scenery.

Diving in Bidanai offers a unique opportunity to explore the remnants of a massive fallen cliff-face that formed many thousands of years ago. This hidden gem is not immediately visible, but once divers enter the swim-through, they will be greeted by a multitude of tiny glass fish that scatter as they swim through. While navigating the rock walls, be sure to keep an eye out for the colorful nudibranchs and exercise caution as scorpion fish may be found on the bottom. Exiting the swim-through and heading towards the left, divers will reach Fantasy Reef, a vibrant dive site adorned with barrel sponges, whip corals, and gorgonian sea fans. The reef is teeming with diverse marine life, including schools of jackfish and trevally that can often be seen hunting younger fish in bait balls above the reef.

After exploring Fantasy Reef, divers can venture to the shallower parts of the reef in the northern direction and discover several large rocks, another exciting swim-through, and a long sloping reef extending towards the northwest of Bida Nai. This reef eventually transforms into a wall that encircles the top of the island before connecting back to the original entry point.

With a visibility of 14 meters and a maximum depth of 18 meters, Bidanai is suitable for divers of various skill levels, ranging from beginners to advanced. Its strategic location near Ko Bida Nok makes it a convenient dive site for those visiting Krabi Province, Thailand. Explore the stunning underwater world of Bidanai and immerse yourself in an unforgettable diving adventure.