The Labyrinth takes its name from its layout: a maze of limestone formations, gutters and swim-throughs that divers wind through at 10–14 m. It is one of the three sites operators regularly use in Lighthouse Bay, along with Blizzard Ridge and Gulliver's, and is described as accessible in almost all conditions because the bay is sheltered from the prevailing south-westerly swell.

The feature that sets it apart is a turtle cleaning station. Green and hawksbill turtles queue at a coral head to have parasites and algae picked off by cleaner fish, and divers who settle quietly nearby can watch at close range for many minutes. It is one of the more reliable turtle encounters in the Exmouth area.

The gutters shelter crayfish, octopus and moray eels, porcupinefish and pufferfish hover under ledges, stingrays rest on the sand patches and sea snakes weave through. Reef fish, whitetip reef sharks and occasional leopard sharks round out the list, and larger animals — dugong, whale sharks and humpback whales — are occasionally seen in the bay in season.

The swim-throughs are short and open, with daylight visible, but they reward good buoyancy control and a trim position to avoid contact with the reef. The site suits Open Water divers and is used for Discover Scuba dives with an instructor.

Coral in the bay was affected by the 2025 bleaching event; the structure and animal life remain the draw. Surface intervals in the bay often come with dolphins or, in winter, humpback whales breaching near the boat.

From Exmouth, charters meet at the operator's shopfront or collect divers from accommodation and either launch at Bundegi boat ramp (about 14 km north of town on Murat Road, sealed, 2WD) or travel from Exmouth Marina (Mortimer Road, 2 km south of town). Lighthouse Bay sits just north of Vlamingh Head Lighthouse at the very tip of North West Cape, roughly 30–45 minutes by boat from Bundegi depending on sea state. Operators run double-dive days with a lunch break on board; sites are on public moorings installed to protect the reef, so the boat ties off and divers giant-stride from the back deck.

Lighthouse Bay is on the northern tip of the Cape and is sheltered from the prevailing south to south-westerly swell that hits the western side, which is why it is the fallback when the west side and Muirons are blown out. It becomes rough in strong northerly or north-easterly winds and in the afternoon south-westerly sea breeze that wraps around the Cape (often 15–25 knots from late spring to autumn), so trips run in the morning. Visibility is 5–20 m, dropping around the March–April coral spawn and during plankton blooms.

Cyclone season runs November to April; trips are cancelled for cyclone warnings. Tidal flow is noticeable around the Cape on springs.

Drop down the mooring to 12–14 m and follow the guide through the maze of gutters and short swim-throughs, keeping good buoyancy and fins high. Stop at the turtle cleaning station to watch turtles being cleaned. Loop back through the outer gutters at 10–12 m to the mooring and make the safety stop on the line.

Dive Ningaloo – double boat dives several days a week, all certification levels including Discover Scuba; Exmouth Dive & Whalesharks Ningaloo – regular Lighthouse Bay trips; Ningaloo Whaleshark Swim (Whalesharks Exmouth) and Ningaloo Whaleshark-N-Dive – Lighthouse Bay dives as weather allows.