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This large, long man-made tunnel was once inhabited by Communist insurgents. It is three levels deep and contains several rooms. Entry fee for foreigners is 150 baht.
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อุทยานแห่งชาติเขาน้ำค้าง
The park has two waterfalls: Ton Dat Fa and Ton Lat Fa.
พระมหาธาตุเจดีย์ไตรภพไตรมงคล Phra Maha Chedi Traipob Traimongkhon
This unique pagoda was made of stainless steel to celebrate King Bhumibol Adulyadej's 60th year on the throne.
วัดหาดใหญ่ใน
The temple is the site of a large reclining Buddha measuring 35m long, 15m tall, and 10m wide, named Phra Phuttha Hattha Mongkhon, believed to be the third-largest reclining Buddha in the world, and revered by both Thai and foreign tourists.
Hat Yai's deep sky observatory.
There are two stations: one at Phra Buddha Mongkol Maharaj (พระพุทธมงคลมหาราช) and the other at Thao Maha Phrom (ท้าวมหาพรหม). The second phase will add two more stations at the playground and Guanyin statue, connecting four stations altogether. There is also a tram service running between the cable car station and the Hat Yai Ice Dome during 10:00-17:00 for 50 baht. A one-way cable car ride takes only a few minutes.