description Koh Tachai Sandbar Overview
Koh Tachai’s prominent sandbar represents a significant feature of the Andaman Sea and Similan National Park. This tidal bar is notable as a crucial habitat supporting diverse marine life including numerous species of fish and invertebrates. It also functions as an essential nesting site for sea turtles, attracting conservation efforts and researchers studying coastal ecosystems. The island and its sandbar are primarily utilized by divers and marine biologists observing underwater biodiversity.
help Koh Tachai Sandbar FAQ
Can tourists still visit Koh Tachai island?
Koh Tachai was closed to tourism by Thai national park authorities around 2016 to allow the island's coral reefs and ecosystem to recover from damage caused by heavy visitor traffic. The closure remains in effect, and the island is now primarily restricted to researchers and park rangers.
What made the Koh Tachai sandbar so famous for snorkeling?
Koh Tachai was renowned for its long, tapering white sandbar that extended into crystal-clear turquoise water, along with surrounding coral reefs rich in marine life. Before the closure, it was one of the most photographed and popular snorkeling stops within the Similan Islands National Park.
How do you get to Koh Tachai from the mainland?
Before its closure, Koh Tachai was accessible by speedboat or larger dive boats from Thap Lamu pier near Khao Lak in Thailand's Phang Nga Province, with trips typically taking about 90 minutes. The island is located north of the main Similan Islands chain and was usually visited during the park's open season from roughly November to April.
Why is Koh Tachai important for sea turtles?
The beaches of Koh Tachai serve as a nesting ground for sea turtles, including species that return to the island's undisturbed sands to lay eggs. The tourist closure was partly intended to protect these nesting sites from disruption by visitors and boat traffic.
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