Christmas Island · Western Australia
Christmas Island Walls
Vertical drop-offs beginning metres from shore, on the tip of an Indian Ocean seamount.
Christmas Island is the tip of a seamount, and the reef drops vertically into very deep water almost immediately offshore.
That geology produces wall diving of a kind that is rare in Australian territory — sheer faces with clear water and pelagic activity, accessible from small boats or in places from shore.
Whale sharks visit seasonally, coinciding with the island's famous red crab spawning.
Max depth
40 m
typically 25 m
Access
boat & shore
Current
variable
Water temp
26–29°C
Level
advanced
| Region | Christmas Island |
|---|---|
| State | Western Australia |
| Access | boat and shore |
| Site type | wall, reef |
| Minimum depth | 5 m |
| Typical depth | 25 m |
| Maximum depth | 40 m |
| Current | variable |
| Visibility | Often 20–40 m |
| Water temperature | Roughly 26–29°C |
| Experience level | intermediate, advanced |
These are guidance categories, not guarantees. Conditions on the day, and an operator’s own requirements, override any classification here.
- whale sharks seasonally
- dolphins
- reef sharks
- hard coral
- pelagic fish
- endemic reef species
- occasional manta rays
Seasonality
- Whale shark season broadly November to April, coinciding with red crab spawning.
Access
- Limited flights — book well ahead.
- Small number of dive operations on the island.
- Some wall sites accessible from shore.
Hazards
- depth with no bottom reference
- current
- remoteness and medical evacuation distance
- limited alternatives if an operator is unavailable
What you might see here
Species documented at this site, with seasonality and etiquette on each page.
Operators servicing this site
Businesses documented as regularly diving this site. Only operators we have established a connection for are listed.
Training that is genuinely useful here
Not a list of everything available — the qualifications that actually change what you can do at this site.
Related dive sites
Worth reading alongside this one.
Frequently asked questions
How deep is Christmas Island Walls?
Depths range from around 5 metres to roughly 40 metres, with a typical profile around 25 metres. Conditions and route selection change this considerably.
Is Christmas Island Walls suitable for beginners?
It is better approached with experience beyond entry level. Better suited to divers with some experience beyond entry level, particularly in the local conditions. Discuss your recent diving honestly with the operator rather than relying on certification alone.
How do you get to Christmas Island Walls?
Access is boat and shore based. Limited flights — book well ahead.
Is there current at Christmas Island Walls?
Current is recorded as variable. Conditions vary daily and should be checked close to the day.
What will I see at Christmas Island Walls?
Commonly reported marine life includes whale sharks seasonally, dolphins, reef sharks, hard coral, pelagic fish, endemic reef species. Sightings are never guaranteed, and several species here are strongly seasonal.
When is the best time to dive Christmas Island Walls?
Whale shark season broadly November to April, coinciding with red crab spawning. There is rarely a single best month — the right time depends on what you want to see.
Where is Christmas Island Walls?
Christmas Island Walls is in the Christmas Island region of Western Australia.
Last researched: September 2026. Dive businesses change frequently — confirm current services, prices and requirements directly with the operator before booking.