Holcim Sanctuary
Philippines / Subic Bay
Holcim Sanctuary is a reef diving and wall diving and macro diving dive site lead in Subic Bay, Philippines. The reference depth is 35 m, entry is usually by boat dive, and the planning level is AOW recommended. The source page provides coordinates, terrain clues, and broad site characteristics, so WhereDive treats this as a structured planning record rather than a fully surveyed local briefing. Confirm daily conditions, visibility, and guide advice before adding it to your itinerary.
Recommended level
AOW
Recommended dives
25+
Max depth
35 m
Average depth
35 m
Current
Mild
Visibility
10-25 m
Water temperature
27-30°C
Best months
Jan, Feb, Mar, Apr, May, Nov, Dec
Best for
Highlights
- • Subic Bay dive-site lead for reef diving and wall diving and macro diving
- • Reference depth: 35 m
- • Entry: boat dive
- • Recommended months: Jan, Feb, Mar, Apr, May, Nov, Dec
- • Likely highlights: nudibranch, coral
What this page helps you answer
If you are comparing Holcim Sanctuary by depth, current, visibility, diver level, and itinerary fit, this page gives a faster planning summary than a simple site name list.
Marine life
Dive types
Safety notes
- • Plan conservatively around the 35 m reference depth and stay within certification limits.
- • Treat current as mild, but follow tide, captain, and guide briefings on the day.
- • boat dive requires confirming entry, exit, and backup procedures before the dive.
- • This record is reference-derived; verify depth, visibility, and suitability with a local operator before diving.
- • Entry type: Boat.
- • Adjust depth and route based on local guide judgment.
Map and coordinates
Holcim Sanctuary
16.769, 120.330
Continue with related pages
Nearby dive sites
Banshu Maru
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- Max depth
- 54 m
- Best months
- Jan, Feb, Mar, Apr, May, Nov, Dec
- • Subic Bay dive-site lead for wreck diving
- • Reference depth: 32-54 m
Canyons Reef
Philippines / Subic Bay
- Max depth
- 18 m
- Best months
- Jan, Feb, Mar, Apr, May, Nov, Dec
- • Subic Bay dive-site lead for reef diving and wreck diving
- • Reference depth: 6-18 m
Douglas Skyraider
Philippines / Subic Bay
- Max depth
- 18 m
- Best months
- Jan, Feb, Mar, Apr, May, Nov, Dec
- • Subic Bay dive-site lead for wreck diving
- • Reference depth: 6-18 m
FAQ
Is this dive site suitable for OW divers? +
Holcim Sanctuary is better for AOW or more experienced divers. OW divers should choose carefully.
What are the best months to dive here? +
The recommended months for Holcim Sanctuary are Jan, Feb, Mar, Apr, May, Nov, Dec. Confirm current local conditions before booking.
Is the current strong here? +
The current rating is Mild. Tide and operator judgment should guide the final decision.
What marine life can be seen? +
Common highlights include nudibranch, coral.