1/4 Mile Mouthpiece Drop
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| 1/4 Mile Mouthpiece Drop | |
|---|---|
 1/4 Mile Mouthpiece Drop from the surface. Looking towards Koh Chuang. | |
  | |
| Location | Samae San Island, Thailand |
| Waterbody | Gulf of Thailand |
| Coordinates | 12°30.094′N 100°57.233′E / 12.501567°N 100.953883°E |
| Dive type | Technical |
| Depth range | 75 m (246 ft) |
| Entry type | Boat |
| Bottom composition | Sandy Bottom |
| Water | Salt |
| Nearby sites | Samaesan Hole (100m), Sharkfin Deep Drop (85m), Thunder Bowl (65m), Narcosis Colosseum (50m), Koh Rong Nang Training Buoy (50m), Hardeep Wreck (36m)[1] |
1/4 Mile Mouthpiece Drop is a technical diving site located in the Gulf of Thailand, Samae San Island, in Sattahip District, Chonburi Province. The vicinity is renowned for its technical diving due to the high concentration of deep and easily accessible dive sites, with PADI referring to it as "Thailand's Hidden Gem for Tec Divers".[2] The area has numerous entries on the List of deepest dive sites in the Gulf of Thailand, with 1/4 Mile Mouthpiece Drop being recognised as the third deepest, with a depth of 75m.[1][2] It is one of the two holes that lie directly to the south of Koh Chuang and are separated by a ridge at 30m. It is the larger of the two, deep southern hole, with Narcosis Colosseum dive site situated to the north.[3] The site is recognised as having better visibility that other deep technical dive sites in the vicinity, with rocky outcrops and barrel coral.[4]
