Dive site · access from Layang-Layang (Swallow Reef)

The Tunnel

The Tunnel: Staghorn and plate coral fields cut by vertical fissures.

Depth
10–30m
Current
Mild
Minimum level
Open water
Access
Boat
Loading dive-site map…

The case for it

Why dive here

  • Staghorn and plate coral fields cut by vertical fissures
  • The atoll's usual night dive
  • Moray eels, anthias and turtles in the shallows

Check before booking

What may rule it out

  • Conditions can change. Confirm depth, current and access with a local operator.

Access and timing

Plan this through Layang-Layang (Swallow Reef)

Best overall months: Mar, Apr, May. Check the destination planner for operating season, wildlife and other matching sites.

Open the trip planner

Wildlife

Seen around Layang-Layang (Swallow Reef)

rareoccasionalcommonly seenpeak seasondestination closed

These are destination-level records, not confirmed sightings at The Tunnel.

Reef manta ray
Sighting likelihood by month
MonthLikelihood
Januarydestination closed
Februarydestination closed
Marchoccasional
Apriloccasional
Mayoccasional
Juneoccasional
Julyoccasional
Augustoccasional
Septemberdestination closed
Octoberdestination closed
Novemberdestination closed
Decemberdestination closed
Pelagic thresher shark
Sighting likelihood by month
MonthLikelihood
Januarydestination closed
Februarydestination closed
Marchrare
Aprilrare
Mayrare
Junerare
Julyrare
Augustrare
Septemberdestination closed
Octoberdestination closed
Novemberdestination closed
Decemberdestination closed
Bigeye trevally
Sighting likelihood by month
MonthLikelihood
Januarydestination closed
Februarydestination closed
Marchcommonly seen
Aprilcommonly seen
Maycommonly seen
Junecommonly seen
Julycommonly seen
Augustcommonly seen
Septemberdestination closed
Octoberdestination closed
Novemberdestination closed
Decemberdestination closed
Bumphead parrotfish
Sighting likelihood by month
MonthLikelihood
Januarydestination closed
Februarydestination closed
Marchoccasional
Apriloccasional
Mayoccasional
Juneoccasional
Julyoccasional
Augustoccasional
Septemberdestination closed
Octoberdestination closed
Novemberdestination closed
Decemberdestination closed
Grey reef shark
Sighting likelihood by month
MonthLikelihood
Januarydestination closed
Februarydestination closed
Marchcommonly seen
Aprilcommonly seen
Maycommonly seen
Junecommonly seen
Julycommonly seen
Augustcommonly seen
Septemberdestination closed
Octoberdestination closed
Novemberdestination closed
Decemberdestination closed
See the destination wildlife guide

Nearby alternatives

Compare another site

Wrasse Strip5–25m · Mild · Open waterShark's Cave10–40m · Mild · Advanced open waterThe Valley8–30m · Mild · Open waterD'Wall5–40m · Moderate · Advanced open water

Sources & last checked

Checked August 2026

Research is source-backed, but conditions and fees should still be confirmed locally.

View 1 source and checking notes

Note on the data: Coordinates are approximate; not surveyed dive-site GPS.