Boulder City Similan Islands

Overview

Boulder City is situated to the south east of Similan Islands 3. Named after the boulders that are formed in long rows giving the impression of a city layout.

Many hard corals and less soft coral and some stunning fluorescent pink Anemone Coral can be found.A great searching site, looking in crevices and finding undiscovered marine life. The site throws up some great stuff even though the site is not in abundance of life.

Hook jaw eels are here as well as the hard to find Ribbon eels along with some nice tuna. Be careful of deco time as you can be in single figures for most of the dive. All in all a very enjoyable site however it should be the first dive of the day. for experienced divers only.

Similan Islands Liveaboard Phuket Scuba Diving Boulder City

A deep site with the shallowest of boulder at around 12 metres and the deepest at 40m and beyond. Visibility is quite good even for an early morning dive and if often around 30+ metres.

 

Inisights

Difficulty

Marine Life

Coral

Currents

Depth:

5-40m

Latitude:

8.517194

Longitude:

97.674637

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Explore Day Trips

Phuket offers exciting full-day diving adventures aboard our dive boats! We call these excursions “Day Trips,” where you can experience multiple dives throughout the day.

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3 Dives

King Cruiser, Shark Point & Koh Doc Mai

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3 Dives

Phi Phi Island and
Shark Point

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3 Dives

Racha Noi and Racha Yai

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Dates for Aussie Divers Phuket IDC and PADI IE

Here is a list of the Aussie Divers Phuket PADI IDCs dates for 2026, including the PADI IE dates for Phuket.

Month
Early Preparation
IDC Course
PADI IE Phuket
Specialty Dates
January ’26
1st – 4th
5th – 16th
17th – 18th
19th – 23rd
February ’26
28th Jan – 1st Feb
2nd – 13th
14th – 15th
16th – 20th
March ’26
25th Feb – 1st Mar
2nd – 13th
14th – 15th
16th – 20th
April ’26
1st – 5th
6th – 17th
18th – 19th
20th – 24th
May ’26
29th Apr – 3rd May
4th – 15th
16th – 17th
18th – 22nd
June ’26
3rd – 7th
8th – 19th
20th – 21st
22nd – 26th
July ’26
1st – 5th
6th – 17th
18th – 19th
20st – 24th
August ’26
29th Jul – 2nd Aug
3rd – 14th
15th – 16th
17th – 21st
September ’26
2nd – 6th
7th – 18th
19th – 20th
21st – 25th
October ’26
30th Sept – 4th Oct
5th – 16th
17th – 18th
19th- 23rd
November ’26
4th – 8th
9th – 20th
21st – 22nd
23rd – 27th
December ’26
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12th – 13th
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