Inland Sea & Tunnel (Dwejra)
Malta, Gozo & Comino, Malta
An 80 m tunnel leads from Dwejra's enclosed lagoon to the open sea, deepening from 3 m to 26 m at the seaward end.
- Advanced
- Rock formations
- Eagle rays
Dark: peak season. Light: regularly seen.
| Destination | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CozumelPeak Nov–Mar | ||||||||||||
| Poor Knights IslandsPeak Jan–Apr | ||||||||||||
| AzoresPeak Jul–Oct | ||||||||||||
| Cancún & Isla MujeresPeak Nov–Feb | ||||||||||||
| GalápagosNov–May | ||||||||||||
| MaldivesDec–May | ||||||||||||
| MauiSep–Feb | ||||||||||||
| Cayman IslandsDec–Apr | ||||||||||||
| Raja AmpatSep–Dec | ||||||||||||
| Fakarava & RangiroaJan–Mar |
Sources confirm them, but don't say in which months.
Malta, Gozo & Comino, Malta
An 80 m tunnel leads from Dwejra's enclosed lagoon to the open sea, deepening from 3 m to 26 m at the seaward end.
SS Yongala (Townsville), Australia
Sunk by a cyclone in March 1911, the wreck lies on a 30 m seabed with its upper parts at 16 m; penetration diving is prohibited by law.

Malapascua, Philippines
A plateau where thresher sharks rise at dawn to visit cleaning stations.

Sharm El Sheikh & Ras Mohammed, Egypt
Ras Mohammed drift with sunlit swim-throughs at 5 and 15 m, then an alley of jackfish and whitetip reef sharks.

Bali & Nusa Penida, Indonesia
Mantas visit the cleaning stations here all year, sometimes in courtship 'manta trains' of up to 30.
Palau
Hook in above the wall and watch resident grey and whitetip reef sharks, tuna and barracuda work the current.
Palau
Ride the channel current past lettuce coral grown 15–20 feet from the bottom, with grey reef sharks and batfish at the mouth.
Dahab, Egypt
Drop through the Bells chimney to a wall at about 25 m, then follow the wall to cross the 7 m saddle into the Blue Hole.
Aliwal Shoal & Protea Banks, South Africa
In raggie season up to 40 ragged-tooth sharks rest in this reef amphitheatre; in summer, look out for hammerheads above.
Dahab, Egypt
Walk-in shore dive where holes and cracks hide morays, nudibranchs and scorpionfish, with a school of yellowtail barracuda at 7 m.

Bonaire
East-coast reef for experienced divers with a guide, where turtles, eagle rays and moray eels thrive and large schools including tarpon roam.
Bonaire
Part of Bonaire's southern double reef system, with a good chance of seeing turtles and eagle rays.