Scuba Diving in the Straits of Tiran

Diving in the Straits of Tiran means drift diving along four submerged reefs in the narrow channel that connects the Red Sea to the Gulf of Aqaba. The strait sits between the Sinai Peninsula and Tiran Island and forces all Gulf of Aqaba traffic through two narrow passages, which means constant strong currents flushing the reefs with nutrient-rich water. The four reefs, named Jackson, Woodhouse, Thomas, and Gordon after the British cartographers who first mapped the area, sit in a north-to-south line and were named in the 19th century.

This is current-driven diving. The Enterprise Passage to the west and the Grafton Passage to the east channel water through the strait, and the eddies, downwellings, and reversals between the reefs are notorious. The corner between Woodhouse and Jackson is nicknamed the "washing machine" for a reason. Dive plans here are dictated by the current: boats drop divers on the upcurrent side and pick up downstream, and slack tide is rare. The reward is some of the cleanest reef structure in the Red Sea: soft-coral walls, schooling pelagic action, regular shark sightings, and dramatic underwater topography including the Three Thomas Arches.

All four reefs are reached on day boats from Sharm El Sheikh, with crossings of 60–90 minutes from the main marinas. Most trips run two dives, typically two of the four reefs, and itineraries are weather-dependent since the northern reefs need calm conditions. The Straits are firmly intermediate-to-advanced territory; Open Water divers can dive Gordon Reef's sheltered south side, but Woodhouse and Thomas are drift-only and unforgiving of inexperience.

Top Dive Sites

The best dive sites in the Straits of Tiran are the four named reefs that divide the channel. Each has its own character, depth profile, and difficulty.

Jackson Reef

Jackson Reef is the northernmost of the four Tiran reefs and the most famous, marked above water by the rusting remains of the Lara, a 137 m (450 ft) Cypriot freighter that ran aground in 1982. The wreck lies twisted on the northern reef top in 6–8 m (20–26 ft), mostly stripped but still a visible landmark. The dive itself starts at the sheltered southern moorings where the wall begins at 40 m (130 ft), follows the reef southwest, and ends in a shallow coral garden at 6 m (20 ft). The north side, only dived in calm summer conditions, is where scalloped hammerheads school in the blue from July to October. Currents at the corners can be very strong.

Depth: 6–40 m (20–130 ft) | Level: Advanced

Woodhouse Reef

Woodhouse Reef is the longest and narrowest of the four, running northeast to southwest between Jackson and Thomas. It offers no shelter from wind or current, which means it's dived only as a drift and only in good weather. The eastern wall drops sharply from a shallow reef top to 30 m+ (100 ft+), with a canyon system on the northern half where a famous red anemone sits brightly luminescent in 30 m (100 ft) of water. Turtles and eagle rays are common, and the small wreck on the northern end adds a navigational landmark. The "washing machine" eddy between Woodhouse and Jackson is best avoided.

Depth: 10–30 m (33–100 ft) | Level: Advanced

Thomas Reef

Thomas Reef is the smallest of the four but the most dramatic underwater. The famous Three Thomas Arches form a vertical sequence on the eastern wall: the first arch opens at 35 m (115 ft), the second around 60 m (200 ft), and the third at 90 m (295 ft), putting the full sequence in technical-diving territory. Recreational divers stay in the upper canyon at 25–30 m (80–100 ft) and explore the entrance to the first arch. Currents at Thomas are unpredictable and can switch direction mid-dive, so this is run only as a drift with experienced guides. Marine life is dense thanks to the constant nutrient flow.

Depth: 8–40 m (26–130 ft) | Level: Advanced

Gordon Reef

Gordon Reef is the southernmost and most accessible of the four, easily recognised above water by the wreck of the Loullia, a Panamanian cargo ship that ran aground on the northern end in 1981. Underwater, the site has a wide oval plateau extending to the south and east of the shallow reef top, with steep drop-offs around the edges. The "shark bowl" at the centre of the plateau drops to 24 m (80 ft) and is known for resting whitetip reef sharks on the sandy bottom. The sheltered southern side of the reef makes Gordon the only Tiran site truly suitable for Open Water divers in calm conditions.

Depth: 6–30 m (20–100 ft) | Level: All Levels (Intermediate for drift)

Laguna Reef

Laguna Reef sits along the western side of Tiran Island, separate from the four main reefs and dived less often because it's a longer crossing from Sharm. The site is a shallow hard-coral lagoon split into North and South Laguna sections by a coral wall, with most diving in 10–12 m (33–40 ft). Strong tidal flows dictate dive plans here, and afternoon dives are usually best. The outer reef wall holds the wreck of the Zingara (also called the Kormoran), a German freighter that sank in 1984. Coral structures in the lagoon itself are exceptional and the site stays calm in weather that shuts down Woodhouse and Thomas.

Depth: 5–18 m (16–60 ft) in the lagoon, deeper at the Zingara wreck on the outer wall | Level: All Levels in the lagoon, Advanced for the wreck

Explore Interactive Map

Best Time to Dive

The best time to dive the Straits of Tiran for hammerheads is July to October, when scalloped hammerheads school in the blue off Jackson Reef's north side. For ideal all-round conditions — flat seas, 30 m+ (100 ft+) visibility, comfortable water — target March to May or September to November. Winter (December to February) brings stronger northerly winds that frequently cancel offshore trips to Woodhouse, Thomas, and the north side of Jackson, though Gordon Reef and its sheltered lagoon often stay diveable.

Diving Conditions

Marine Life

Marine life in the Straits of Tiran is concentrated by the strong currents that funnel water and nutrients through the channel. Soft coral coverage is exceptional on all four reefs, and pelagic encounters are more reliable here than at most other Sharm sites thanks to the open-water proximity.

Scalloped hammerhead sharks: July to October, especially around Jackson Reef. Scalloped hammerheads school off the north side of Jackson Reef during the warmest months. The site is only accessible in calm conditions, and most encounters happen on the first dive of the morning before the trade winds build. Peak sightings are August and September.

Whitetip reef sharks: Year-round, especially around Gordon Reef. Resident whitetip reef sharks gather in the "shark bowl" sandy plateau at Gordon Reef year-round, often two or three at a time resting on the bottom. They tolerate divers well but maintain distance, so wide-angle photographers do better than close-up shooters.

Spinner dolphins. Pods of spinner dolphins are regularly seen on the surface during the boat crossing to Jackson and Woodhouse, and occasionally pass divers in the water.

• Pelagic action: Tuna, jacks, barracuda, and bonito school at the corners of all four reefs, especially during summer current peaks. Eagle rays cruise the drop-offs at Woodhouse and Thomas year-round.
• Reef life: Giant morays, scorpionfish, lionfish, schooling fusiliers, Napoleon wrasse, and dense soft coral coverage define every site. Green and hawksbill turtles are common at Gordon's lagoon and Woodhouse's northern canyon.

Practical Information

Dive Prices

• Fun dives: $70–$100 USD per two-tank day trip from Sharm El Sheikh
• Park/permit fees: No specific Tiran park fee. Most Sharm operators run Tiran and Ras Mohammed as separate day trips, so the $15 USD Ras Mohammed park fee only applies if you book that destination specifically.

Getting There

The Straits of Tiran are reached only by day boat from Sharm El Sheikh's marinas (Sharks Bay, Travco, Naama Bay), with crossings of 60–90 minutes to the closest southern reef and a bit longer to Jackson at the north end. Most operators run a two-dive day visiting two of the four reefs based on conditions and current direction. The Tiran reefs are not generally part of liveaboard itineraries. They're day-boat territory accessed from Sharm.